Question

A circle has area 220 cm find the area of a square which is inside of circle

Answer 1

answer is 70 cm square as radius is √70

Answer 2

HEY!!!

Area of circle=πr^2

220 =22/7 x r^2

r^2 =70 square units

if square incribed in a circle then diameter of circle =diagonal of square

hence,

2r =√2(side length )

now take both side squaring

4r^2=2(side length) ^2

put r^2=70 from above

4(70)=2(side length) ^2

so,

(side length)^2=140 square units

but we also know

area of square =(side length)^2

hence , area of square=140 sq units