RS Aggarwal - Mathematics

Book: RS Aggarwal - Mathematics

Chapter: 18. Area of Circle, Sector and Segment

Subject: Maths - Class 10th

Q. No. 7 of Multiple Choice Questions (MCQ)

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The area of a square is the same as the area of a circle. Their perimeters are in the ratio

Let the length of the side of the square be a

Let the radius if circle be r

Area of a square = a2

Area of circle = πr2

Area of a square = Area of a circle

a2 = πr2

a = √π × r

Perimeter of circle = 2πr

Perimeter of square = 4a

= 4√π r

Ratio of perimeter of circle and square = √π : 2

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