Question

At Mario's Pizza, a large pizza has a diameter of 18 inches. What is the area of two pizzas?

Answer 1

First, the area of the pizza then double it.

Area for a circle: Area = $\pi$ * r^2

Plug in the values.

We will use 3.14 for $\pi$.

We need the radius. So half the diameter to get the radius.

18 / 2 = 9

Area = 3.14 * 9^2
Area = 3.14 * 81
Area = 254.34

Then multiply 2 to get the double the area.

254.34 * 2 = 508.68

So, the answer to this question is D. 508.68 in. 2.