Question

what is the area of a circle who's diameter is 10cm

Answer 1

area = pi*r^2. radius = diameter/2 so area will be a = pi* (10/2)^2

Answer 2

A of circle = pir2
= (pi)(5cm)
= 5pi
The radius will be half the diameter which is 5cm.

Answer 3

Be careful. The answer is pi r^2 = pi (5 cm)^2 = pi 25 cm^2, or 25 pi centimeters squared.

Answer 4

@rulnick thank you

Answer 5

oh yes, its pi times r to the power of 2. good luck.

Answer 6

Welcome.