Respuesta :
Answer:
b. 20πcm
Step-by-step explanation:
The circumference is given by
C = 2*pi*r
= 2* pi *10
= 20pi
Circumference Formula: C = 2πr
C = 2π(10)
C = 20π
The correct answer is b. 20πcm
Note that if you want to solve for the exact circumference, you don't want to solve for pi since its a non-terminating decimal. If you want to round the nearest circumference multiply pi with 3.14.
Best of Luck!