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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?

Sagot :

Answer:

[tex]A=254.46\ cm^2[/tex]

Step-by-step 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 :

[tex]A=\pi r^2[/tex]

Where

r is the radius of the circle

Here, r = 9 cm

So,

[tex]A=\pi (9)^2\\\\A=254.46\ cm^2[/tex]

So, the area of the pizza is [tex]254.46\ cm^2[/tex].