A circular plate has a diameter of 9 inches.What is the area of the plate?

Question

asked Jan 10, 2021 121k views

2 Answers

Ikathegreat · Answer 1 · 2021-01-12T05:38:10+0000

63.585 inches^2

Explanation:

The formula for the area of a circle is...

$A=\pi r^2$

We need the radius for this, but we have the diameter. Since radius is half of the diameter, we know the radius will be 4.5. We can plug that in.

A=3.14*4.5*4.5

63.585 inches^2

AliSh · Answer 2 · 2021-01-14T10:31:34+0000

Answer: 63.61725124

Explanation:

area = pi x r^2

diameter is double the radius, labeled r in the formula.

9/2 = 4.5

r = 4.5

area = pi x 4.5^2

area = 63.61725124 or 81/4pi