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The area of a trampoline is 49 pi sqared. What's the diameter of the trampoline?

User DanceIgel
by
5.2k points

1 Answer

3 votes

Answer:

The diameter is 14

Explanation:

The area of a circle is given by

A = pi r^2

We know the area is 49 pi

49 pi = pi r^2

Divide each side by pi

49 pi/ pi = pi r^2/pi

49 = r^2

Take the square root of each side

sqrt(49) = sqrt(r^2)

7 =r

We want the diameter

d = 2r

d = 2*7

d = 14

User Srboisvert
by
5.1k points
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