Question

find the radius of a circle whose circumference is 52.8. take pie as 22/7​

Answer 1

Answer:

Let radius of a circle be r

Circumference of a circle = 2×pi×r

52.8 = 2×22/7×r

52.8 = 44/7×r

52.8 × 7/44 = r

8.4 = r

Hope this will help uh

Answer 2

Answer:

C= 2πr

Also given C= 52.8

∴ 528/10 = 2×22/7× r

r = 528 × 7/ 10×2×22

r= 6 × 7/ 5

r = 42/5

r = 8.4 units