Question

The area of a square is 49 cm square.Find the circumference of the largest circle cut out of it​

Answer 1

area of square= 49 cm square

side = root of (area of square)=7 cm

radius of circle= side/2 =7/2=3.5

circumference=2*pie*r

                      =2*22/7*3.5

                      =22 cm

answer: 22cm

Answer 2

area of square =49cm

we know ,

area is square = a ×a ( a = side of square )

49 = a × a

√49 = a

7 cm = a

A.T.Q

diameter of the circle = 7 cm

radius of circle = 3.5 cm

circumference of the circle = 2πr

= 2 ×22\7 × 3.5

= 22 cm