Question

find the area of the largest circle that can be cut of a square board of side 42 cm.

Answer 1

Side of the square board = 42cm



Now,
Largest circle that can be cut will be of diameter equal to side of the square.

So, diameter of the circle = 42 cm
Radius = 42/2 = 21cm

Area of circle = pie * r^2
So, 22/7 *21*21
= 22*21*3
= 1386 sq. cm

I hope this will help you.
:) :)