Question

What is the exact area of a circle with a diameter of 10 cm? a. 5πcm^2 b. 10πm^2 c. 25πcm^2 d. 100πcm^2

Answer 1

Answer:

C

Step-by-step explanation:

a=$\pi$r^2

To find the radius, divide the diameter by 2

r=d/2

r=10/2

r=5

a=$\pi$r^2

a=$\pi$5^2

a=25$\pi$

So, choice C is correct

Hope this helps! :)