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A pizza has and area of 314 inches squared. what is the diameter of this pizza the radius

User Dwitvliet
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1 Answer

3 votes

Answer:

The radius is
r=10\ in and the diameter is
D=20\ in

Explanation:

we know that

The area of the circle is equal to


A=\pi r^(2)

In this problem we have


A=314\ in^(2)

substitute and solve for r

assume


\pi =3.14


314=(3.14)r^(2)


r^(2)=314/3.14


r^(2)=100


r=10\ in

Find the diameter


D=2r


D=2(10)=20\ in

User Thomas Jiang
by
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