Chapter 11 · Class 10 CBSE · Formula Sheet

Areas Related to Circles Formulas — Class 10 CBSE

Calculate area of sectors, segments, and combinations of plane figures involving circles.

Key Formulas

Area of Circle

A = \pi r^2

Area of Sector

A = \dfrac{\theta}{360°} \times \pi r^2

Length of Arc

L = \dfrac{\theta}{360°} \times 2\pi r

Area of Segment

A = \text{Area of sector} - \text{Area of triangle}

Worked Examples

1Using: Area of Rectangle

Find the area of a rectangle with length 12 cm and breadth 5 cm.

Step 1: Area = l x b

Step 2: = 12 x 5 = 60 sq. cm.

Answer: 60 sq. cm

2Using: Perimeter of Square

Find the perimeter of a square with side 8 m.

Step 1: Perimeter = 4a

Step 2: = 4 x 8 = 32 m.

Answer: 32 m

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More Class 10 CBSE Formulas

Real NumbersPolynomialsPair of Linear Equations in Two VariablesQuadratic EquationsArithmetic ProgressionsTriangles

Frequently Asked Questions

How many formulas are in Class 10 CBSE Areas Related to Circles?+
There are 4 formulas in the Areas Related to Circles chapter for Class 10 CBSE. Each formula is essential for solving problems in this topic.
How to remember Areas Related to Circles formulas easily?+
Practice regularly with worked examples, group related formulas together, and use SparkEd's interactive practice mode to reinforce your memory through problem-solving.
Are these Areas Related to Circles formulas enough for exams?+
Yes, these formulas cover the complete CBSE Class 10 syllabus for Areas Related to Circles. Practice applying them to different types of questions for full exam readiness.

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