Question

What is the radius of this circle if the circumference is 18 pi cm? A circle. C = 18 pi cm 3 cm 9 cm 18 cm 36 cm

Answer 1

Answer:

the answer is 9 cm

Step-by-step explanation:

Answer 2

Answer:

9 cm

Step-by-step explanation:

$\because \: C = 2\pi \: r \\ \\ \therefore \: 18\pi = 2\pi \times r \\ \\ \therefore \: r = \frac{18\pi}{2\pi} \\ \\ \therefore \: r =9 \: cm$

Hence, radius of circle is 9 cm.