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If you were to cover a pizza with cheese, how much area, rounded to the nearest whole number, would you need to cover with cheese if the pizza had a circumference of 31.4 inches?

1 Answer

8 votes

Answer:

79 square inches

Explanation:

First, let's find the diameter given the circumference.


  • C=\pi d

  • d=(C)/(\pi )

  • d= 31.4/3.14

  • d=10

Next, we know the the radius is half the diameter, so the radius is 5 inches. Now, we can solve the area of the circle.


  • 3.14 * 5^2

  • 3.14 * 25

  • 78.5
  • 78.5 ≈ 79 square inches

Therefore, the answer is 79 square inches.

User Alex Rouillard
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