Question

What is the area of a circle with the diameter of 12

Answer 1

113.04

Answer 2

Radius = 6

Answer 3

d=12
r=6
pir^2=36pi

Answer 4

pi * r^2
r = radius = half of diameter so r = 6
area = pi * 6^2

Answer 5

\[Area = \pi r^2\]\[\pi 6^2\]\[36\pi\]

Answer 6

\[A= \pi r^2\]\[r=d/2\]\[A= \pi d^2/4=\pi 12^2/4=36 \pi\]