Question

find the radius of a circle whose area is221.76cm​

Answer 1

Answer:

Area- pie x r x r

221.76 - 22/7 x r x r

221.76 x 7 /22 = r x r

4878.72/22 - r x r

221.76 - r x r

r - 14.891 .

Answer 2

Answer:

84cm

Step-by-step explanation:

area= 22/7×r²

r²= 221.76÷22×7

r²= 70.56

r= 2×2×3×7