Question

find the area of a circle whose circumference is 52.8 cm​

Answer 1

$\huge\mathbb{↓SOLUTION↓}$

Circumference of circle = 2πr

52.8 = 2πr

πr = 52.8/2

πr = 26.4

r = 26.4×7/22

r = 8.4cm

Area of circle = πr²

22/7 ×8.4×8.4

221.76cm²

★Hope it helps you★

Answer 2

Answer:

2*22/7*r=528/10

r=528/10*1/2*7/22

r=8.4

area=22/7*8.4*8.4

=221.76cm square