A trampoline gas an area of 49 • pi square feet. What is the diameter if the trampoline?

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11-12-2014
Mathematics

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A trampoline gas an area of 49 • pi square feet. What is the diameter if the trampoline?

Sagot :

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Espeonidn Espeonidn · Answer 1 · 2014-12-11T19:08:51-05:00

Espeonidn Espeonidn

11-12-2014

So,
if the area is 49pi, and the formula for the area of a circle is radius squared times pi,

The square root of 49 is 7.
The radius is 7.
To find the diameter, you multiply the radius by 2 because the radius is half of the diameter.
7x2=14
The diameter is 14 square feet.
Hope I helped!

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Mrudzkiidn Mrudzkiidn · Answer 2 · 2014-12-11T19:10:46-05:00

Mrudzkiidn Mrudzkiidn

11-12-2014

[tex] area (S)= \pi r^2 [/tex]
so
[tex] 49 \pi= \pi r^2 [/tex]
so r^2=49 then r=7
diameter is 2*r=2*7=14

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