Question

the perimeter of a circle is 220 cm the area of a square incribed in it​

Answer 1

2πr=220
r=220/2π
r=(220*7)/2*22
r=5*7
r=35cm
diameter =2r=2*35=70cm
diagonal of square,d=70cm
area of the square=(1/2)d^2
=(1/2)(70)^2
=(1/2)70*70
=(1/2)4900
=2450cm^cm