Question

Will someone help me pls

Answer 1

C=66

Explanation:

C=2pi*r

C=2*pi*10.5

C=21*pi

C=21*3.14

C=65.94

Answer 2

C- 66

Explanation:

Multiply the radius (10.5) by 2 and then times that (10.5x2=21) by pi (3.14)