Question

The circumference of a circle is 60 pi cm3What is the radius of the circle

Answer 1

Answer:

The radius r = 30 cm

Step-by-step explanation:

The formula of a circumference of a circle:

$C=2\pi r$

r - radius

We have $C=60\pi\ cm^3$

Substitute:

$2\pi r=60\pi\qquad|\text{divide both sides by }\ 2\pi\\\\\dfrac{2\pi r}{2\pi}=\dfrac{60\pi}{2\pi}\\\\r=30$

Answer 2

Answer:

r = 9.5492965855137 cm

Step-by-step explanation:

Answer:

r = 9.5492965855137 cm

C = 60 cm

A = 286.47889756541 cm²