Question

What is the area of a circle with a diameter of 28 inches? Answer in terms of Pi. *

5 points



28 cm



14 cm



7 cm



196 cm

Answer 1

Formula for the area of a circle:

A = πr² (A = Area π(pi) r = radius)

You know:

r = 14 inches So substitute/plug it into the equation

[Radius is
`(1)/(2)` (half) of the diameter. The diameter is 28, so half of 28 = 14]

A = πr² Plug in 14 into "r" since r = 14

A = π(14)² Find 14² --> 14 x 14 = 196

A = 196π in² Your answer is the 4th option