Question

Tiffany makes a round pizza. She wants to put a cheese layer on the pizza. If the pizza has a diameter of 18 cm, how many square cm of cheese layer does she need to put on the pizza?

Answer 1

`A=254.46\ cm^2`

Explanation:

Given that,

The diameter of the pizza, d = 18 cm

We need to find the square cm of cheese layer does she need to put on the pizza.

We know that the area of the circle is given by :

`A=\pi r^2`

Where

r is the radius of the circle

Here, r = 9 cm

So,

`A=\pi (9)^2\\\\A=254.46\ cm^2`

So, the area of the pizza is
`254.46\ cm^2`.