Focus Classes - Maths 9 & 10

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Welcome to Focus Classes | Class 9 & 10 Maths Excellence Hi, I’m Deepak Rajoria, a Mathematics Mentor with 15+ years of teaching experience. My mission is simple — to make Maths easy, logical, and high-scoring for every student. If you’re a Class 9 or Class 10 student, this channel is your complete guide to mastering Mathematics with clarity and confidence. 🎯 What You’ll Learn Here: ✔ Complete NCERT Syllabus (Chapter-wise & Topic-wise) ✔ Detailed Solutions of RD Sharma & RS Aggarwal ✔ Previous Years’ Board Questions (Step-by-Step) ✔ Important & Most Repeated Questions ✔ Smart Tricks, Problem-Solving Techniques & Exam Strategy ✔ Simple explanations in Hindi + English 🌐 Visit Our Website: www.focusclasses.co.in 📚 Free Chapter-wise Tests | 📄 Free PDFs | 🎥 Topic-wise Videos 📱 WhatsApp: 8273007746 📸 Instagram: bit.ly/4lCZHbs 📢 Telegram: t.me/cbse_class_tenth 🔔 Subscribe now and join the Focus Classes family — Where Maths is Simple, Smart & Scoring!

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Ex:11.3 - Q.7) A right triangle ABC with sides 5 cm, 12 cm and 13 cm is revolved about the side 12

Ex:11.3 - Q.7) A right triangle ABC with sides 5 cm, 12 cm and 13 cm is revolved about the side 12 Focus Classes - Maths 9 & 10

166 views - 1 month ago

Monica has a piece of canvas whose area is 551 m2 . She uses it to have a conical tent made

Monica has a piece of canvas whose area is 551 m2 . She uses it to have a conical tent made Focus Classes - Maths 9 & 10

72 views - 1 month ago

Find the radius of the circle passing through (5, -8), (2, -9) and (2, 1).

Find the radius of the circle passing through (5, -8), (2, -9) and (2, 1). Focus Classes - Maths 9 & 10

49 views - 1 month ago

Find the centre of the circle passing through (6, –6), (3, –7) and (3, 3).

Find the centre of the circle passing through (6, –6), (3, –7) and (3, 3). Focus Classes - Maths 9 & 10

94 views - 1 month ago

An equilateral triangle has two vertices at the points (3, 4) and (– 2, 3), find the coordinates of

An equilateral triangle has two vertices at the points (3, 4) and (– 2, 3), find the coordinates of Focus Classes - Maths 9 & 10

137 views - 1 month ago

Prove that (2, – 2), (– 2, 1) and (5, 2) are the vertices of a right-angled triangle. Find the area

Prove that (2, – 2), (– 2, 1) and (5, 2) are the vertices of a right-angled triangle. Find the area Focus Classes - Maths 9 & 10

30 views - 1 month ago

Which point on x-axis is equidistant from (5, 9) and (– 4, 6) ? Coordinate Geometry Class - 10

Which point on x-axis is equidistant from (5, 9) and (– 4, 6) ? Coordinate Geometry Class - 10 Focus Classes - Maths 9 & 10

28 views - 1 month ago

If A (5, 3), B (11, –5) and P (12, y) are the vertices of a right triangle right angled at P, find p

If A (5, 3), B (11, –5) and P (12, y) are the vertices of a right triangle right angled at P, find p Focus Classes - Maths 9 & 10

64 views - 1 month ago

Find the value of k, if the point P (0, 2) is Equidistant from (3, k) and (k, 5).

Find the value of k, if the point P (0, 2) is Equidistant from (3, k) and (k, 5). Focus Classes - Maths 9 & 10

75 views - 1 month ago

Find the distance between the following points (a cosθ + b sinθ, 0) and (0, a sinθ – b cosθ)

Find the distance between the following points (a cosθ + b sinθ, 0) and (0, a sinθ – b cosθ) Focus Classes - Maths 9 & 10

38 views - 1 month ago

How to Calculate Median for Grouped Data?( Hindi Audio) | Formula for Median of Grouped Data

How to Calculate Median for Grouped Data?( Hindi Audio) | Formula for Median of Grouped Data Focus Classes - Maths 9 & 10

68 views - 1 month ago

Real Numbers Class 10 Most Important Questions for the Board Exam | NCERT | CBSE

Real Numbers Class 10 Most Important Questions for the Board Exam | NCERT | CBSE Focus Classes - Maths 9 & 10

1 month ago

How to find Missing Frequencies when Median is given | Class 10 Statistics Most Important Question

How to find Missing Frequencies when Median is given | Class 10 Statistics Most Important Question Focus Classes - Maths 9 & 10

222 views - 1 month ago

Class 10th Real Numbers Rapid Revision Part 1🔥 | Class 10 Maths Chapter 1 MOST Important Questions

Class 10th Real Numbers Rapid Revision Part 1🔥 | Class 10 Maths Chapter 1 MOST Important Questions Focus Classes - Maths 9 & 10

77 views - 1 month ago

Real Numbers Class 10 Most Important Questions for the Board Exam Part -3 | NCERT | CBSE

Real Numbers Class 10 Most Important Questions for the Board Exam Part -3 | NCERT | CBSE Focus Classes - Maths 9 & 10

1 month ago

Real Numbers Full Concept🔥 | Class 10 Maths Chapter 1 | Most Important Questions for Board Exam

Real Numbers Full Concept🔥 | Class 10 Maths Chapter 1 | Most Important Questions for Board Exam Focus Classes - Maths 9 & 10

1 month ago

Class 10th Real Numbers Rapid Revision Part 1🔥 | Class 10 Maths Chapter 1 MOST Important Questions

Class 10th Real Numbers Rapid Revision Part 1🔥 | Class 10 Maths Chapter 1 MOST Important Questions Focus Classes - Maths 9 & 10

1 month ago

Areas Related to Circles Most Important Questions for Board Exam🔥| Class 10 Maths 100/100

Areas Related to Circles Most Important Questions for Board Exam🔥| Class 10 Maths 100/100 Focus Classes - Maths 9 & 10

1 month ago

Areas Related to Circles Most Important Questions for Board Exam🔥| Class 10 Maths 100/100

Areas Related to Circles Most Important Questions for Board Exam🔥| Class 10 Maths 100/100 Focus Classes - Maths 9 & 10

1 month ago

Most important questions for board exam from Areas Related to Circles class 10

Most important questions for board exam from Areas Related to Circles class 10 Focus Classes - Maths 9 & 10

1 month ago

Class - 10 Ch - 11, Area Related to Circles || NCERT CBSE || Most Important Questions for Board Exam

Class - 10 Ch - 11, Area Related to Circles || NCERT CBSE || Most Important Questions for Board Exam Focus Classes - Maths 9 & 10

1 month ago

Class - 10 Ch - 11, Area Related to Circles || NCERT CBSE || Most Important Questions for Board Exam

Class - 10 Ch - 11, Area Related to Circles || NCERT CBSE || Most Important Questions for Board Exam Focus Classes - Maths 9 & 10

1 month ago

Areas Related to Circles Most Important Questions for Board Exam🔥| Class 10 Maths 100/100

Areas Related to Circles Most Important Questions for Board Exam🔥| Class 10 Maths 100/100 Focus Classes - Maths 9 & 10

1 month ago

Surface Areas and Volumes Class 10 | Class 10th MATHS Board Exam | Most Important Questions

Surface Areas and Volumes Class 10 | Class 10th MATHS Board Exam | Most Important Questions Focus Classes - Maths 9 & 10

1 month ago

A car has wheels which are 80 cm in diameter. How many complete revolutions does each wheel make in

A car has wheels which are 80 cm in diameter. How many complete revolutions does each wheel make in Focus Classes - Maths 9 & 10

65 views - 1 month ago

If the perimeter of a semi-circular protractor is 36 cm, find the Area of the protractor

If the perimeter of a semi-circular protractor is 36 cm, find the Area of the protractor Focus Classes - Maths 9 & 10

22 views - 1 month ago

Find the area of the shaded region in Fig. where a circular arc of radius 6 cm has been drawn with

Find the area of the shaded region in Fig. where a circular arc of radius 6 cm has been drawn with Focus Classes - Maths 9 & 10

66 views - 1 month ago

Coordinate Geometry Class 10🔥 | Class 10 Maths Chapter 7 | Most Important Questions for Board Exam

Coordinate Geometry Class 10🔥 | Class 10 Maths Chapter 7 | Most Important Questions for Board Exam Focus Classes - Maths 9 & 10

1 month ago

AB and CD are respectively arcs of two concentric circles of radii 21 cm and 7 cm and centre O.

AB and CD are respectively arcs of two concentric circles of radii 21 cm and 7 cm and centre O. Focus Classes - Maths 9 & 10

74 views - 1 month ago

Coordinate Geometry Class 10🔥 | Distance Formula | Most Important Questions for Board Exam

Coordinate Geometry Class 10🔥 | Distance Formula | Most Important Questions for Board Exam Focus Classes - Maths 9 & 10

1 month ago

Find the area of the shaded region if ABCD is a square of side 14 cm and APD and BPC are semicircles

Find the area of the shaded region if ABCD is a square of side 14 cm and APD and BPC are semicircles Focus Classes - Maths 9 & 10

63 views - 1 month ago

Coordinate Geometry Class 10 | Class 10 Maths Chapter 7 | Most Important Questions on Distance formu

Coordinate Geometry Class 10 | Class 10 Maths Chapter 7 | Most Important Questions on Distance formu Focus Classes - Maths 9 & 10

1 month ago

Coordinate Geometry Class 10 | Most Important Questions on Distance Formula for Board Exam 2026

Coordinate Geometry Class 10 | Most Important Questions on Distance Formula for Board Exam 2026 Focus Classes - Maths 9 & 10

1 month ago

How to find the Missing Frequencies when Mean is Given | Mean = 50, Sum of frequencies = 100

How to find the Missing Frequencies when Mean is Given | Mean = 50, Sum of frequencies = 100 Focus Classes - Maths 9 & 10

1 month ago

Surface Areas and Volumes Class 10 | Most Important Questions for Board Exam 2026

Surface Areas and Volumes Class 10 | Most Important Questions for Board Exam 2026 Focus Classes - Maths 9 & 10

1 month ago

Surface Areas and Volumes Class 10 Part -2 | Volume Related Problems | PYQS from Surface Areas

Surface Areas and Volumes Class 10 Part -2 | Volume Related Problems | PYQS from Surface Areas Focus Classes - Maths 9 & 10

45 views - 1 month ago

Surface Areas And Volumes | Chapter 12 | Exercise 12.1 | Introduction | Class 10 Board Exam 2026

Surface Areas And Volumes | Chapter 12 | Exercise 12.1 | Introduction | Class 10 Board Exam 2026 Focus Classes - Maths 9 & 10

1 month ago

How to Calculate Missing Frequency When Median is Given ? | Grouped Data Missing Data

How to Calculate Missing Frequency When Median is Given ? | Grouped Data Missing Data Focus Classes - Maths 9 & 10

104 views - 1 month ago

Statistics 10 Median Related Problems | How to calculate Median of the given data | CBSE | NCERT

Statistics 10 Median Related Problems | How to calculate Median of the given data | CBSE | NCERT Focus Classes - Maths 9 & 10

1 month ago

Statistics Class 10 | How to Find Mode of Grouped data | How to find Missing Frequencies in Mode

Statistics Class 10 | How to Find Mode of Grouped data | How to find Missing Frequencies in Mode Focus Classes - Maths 9 & 10

1 month ago

Statistics Class 10 | Introduction to Mean |How to Find Mean of Grouped Data | CBSE | NCERT

Statistics Class 10 | Introduction to Mean |How to Find Mean of Grouped Data | CBSE | NCERT Focus Classes - Maths 9 & 10

1 month ago

Ex:12.2 - Q.1) A solid is in the shape of a cone standing on hemisphere with both their radii being

Ex:12.2 - Q.1) A solid is in the shape of a cone standing on hemisphere with both their radii being Focus Classes - Maths 9 & 10

424 views - 1 month ago

A spherical glass vessel has a cylindrical neck 8cm long 2cm in diameter | Ex 12.2 Class 10 Maths Q8

A spherical glass vessel has a cylindrical neck 8cm long 2cm in diameter | Ex 12.2 Class 10 Maths Q8 Focus Classes - Maths 9 & 10

130 views - 1 month ago

A solid iron pole consists of a cylinder of height 220 cm and base | Exercise 12.2 Class 10 Maths Q6

A solid iron pole consists of a cylinder of height 220 cm and base | Exercise 12.2 Class 10 Maths Q6 Focus Classes - Maths 9 & 10

67 views - 1 month ago

A solid consisting of a right circular cone of height 120 cm and radius | Ex 13.2 Class 10 Maths Q7

A solid consisting of a right circular cone of height 120 cm and radius | Ex 13.2 Class 10 Maths Q7 Focus Classes - Maths 9 & 10

116 views - 1 month ago

A pen stand made of wood is in the shape of a cuboid with four | Exercise 12.2 Class 10 Maths Q4

A pen stand made of wood is in the shape of a cuboid with four | Exercise 12.2 Class 10 Maths Q4 Focus Classes - Maths 9 & 10

82 views - 3 months ago

A vessel is in the form of an inverted cone Its height is 8 cm | Exercise 12.2 Class 10 Maths Q5

A vessel is in the form of an inverted cone Its height is 8 cm | Exercise 12.2 Class 10 Maths Q5 Focus Classes - Maths 9 & 10

142 views - 3 months ago

Probability One Shot 🔥 | Class 10 Maths Chapter 14 | CBSE Board Exam

Probability One Shot 🔥 | Class 10 Maths Chapter 14 | CBSE Board Exam Focus Classes - Maths 9 & 10

35 views - 3 months ago

Probability One Shot 🔥 | Class 10 Maths Chapter 14 | Full Concept | NCERT | CBSE Board Exam 2026

Probability One Shot 🔥 | Class 10 Maths Chapter 14 | Full Concept | NCERT | CBSE Board Exam 2026 Focus Classes - Maths 9 & 10

3 months ago

A gulab jamun contains sugar syrup up to about 30% of its volume | Exercise 12.2 Class 10 Maths Q3

A gulab jamun contains sugar syrup up to about 30% of its volume | Exercise 12.2 Class 10 Maths Q3 Focus Classes - Maths 9 & 10

250 views - 3 months ago

Probability One Shot 🔥 | Class 10 Maths Chapter 14 | Full Concept | NCERT | CBSE Board Exam 2026

Probability One Shot 🔥 | Class 10 Maths Chapter 14 | Full Concept | NCERT | CBSE Board Exam 2026 Focus Classes - Maths 9 & 10

3 months ago

Rachel an engineering student was asked to make a model shaped | Exercise 12.2 Class 10 Maths Q2

Rachel an engineering student was asked to make a model shaped | Exercise 12.2 Class 10 Maths Q2 Focus Classes - Maths 9 & 10

78 views - 3 months ago

A solid toy is in the form of a hemisphere surmounted by a right circular cone | Ch 13 class 10 ex 7

A solid toy is in the form of a hemisphere surmounted by a right circular cone | Ch 13 class 10 ex 7 Focus Classes - Maths 9 & 10

620 views - 3 months ago

Surface Area and Volume Class 10 Example 6 | A juice seller was serving his customers using glasses

Surface Area and Volume Class 10 Example 6 | A juice seller was serving his customers using glasses Focus Classes - Maths 9 & 10

416 views - 3 months ago

Surface Area and Volume Class 10 Example 5 | Shanta runs an industry in a shed which is in the shape

Surface Area and Volume Class 10 Example 5 | Shanta runs an industry in a shed which is in the shape Focus Classes - Maths 9 & 10

141 views - 3 months ago

Ex:12.1 - Example 3) A wooden toy rocket is in shape of a cone mounted on cylinder, as shown in Fig

Ex:12.1 - Example 3) A wooden toy rocket is in shape of a cone mounted on cylinder, as shown in Fig Focus Classes - Maths 9 & 10

540 views - 3 months ago

Ex:12.1 - Example 2) The decorative block shown is made of two solids — a cube and a hemisphere.

Ex:12.1 - Example 2) The decorative block shown is made of two solids — a cube and a hemisphere. Focus Classes - Maths 9 & 10

297 views - 3 months ago

A cubical block of side 7 cm is surmounted by a hemisphere. What is the greatest diameter the

A cubical block of side 7 cm is surmounted by a hemisphere. What is the greatest diameter the Focus Classes - Maths 9 & 10

176 views - 3 months ago

Ex:12.1 - Example 1) Rasheed got a playing top (lattu) as his birthday present, which surprisingly

Ex:12.1 - Example 1) Rasheed got a playing top (lattu) as his birthday present, which surprisingly Focus Classes - Maths 9 & 10

1.2K views - 3 months ago

Ex:12.1 - Q.3) A toy is in the form of a cone of radius 3.5 cm mounted on hemisphere of same radius.

Ex:12.1 - Q.3) A toy is in the form of a cone of radius 3.5 cm mounted on hemisphere of same radius. Focus Classes - Maths 9 & 10

223 views - 3 months ago