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29-01-2017
Mathematics

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what happens to the area of a circle when the radius is tripled

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density20 density20

29-01-2017

the area is multiplied by 9 (I'm pretty sure)

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allykonowal allykonowal

29-01-2017

A = pi*r^2
ATriple = pi*(3r)^2 = 9*pi*r^2 = 9 A

Triple the radius, increase the area by a factor of 9.

i hope this has helped!

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