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mrs.perkins
 3 years ago
If the radius of a circle is multiplied by 4, then how many times larger is the circumference of the new circle?
mrs.perkins
 3 years ago
If the radius of a circle is multiplied by 4, then how many times larger is the circumference of the new circle?

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Monkeyball
 3 years ago
Best ResponseYou've already chosen the best response.0The circumference of a circle is given by \[2*\pi*r\]

Monkeyball
 3 years ago
Best ResponseYou've already chosen the best response.0and lets say we pick r=1 we get \[2*\pi\]

Monkeyball
 3 years ago
Best ResponseYou've already chosen the best response.0now lets say that we multiply the radius by 4 so now r=4

Monkeyball
 3 years ago
Best ResponseYou've already chosen the best response.08 pi is 4 times bigger than 2 pi

mrs.perkins
 3 years ago
Best ResponseYou've already chosen the best response.1so whats the answer

Monkeyball
 3 years ago
Best ResponseYou've already chosen the best response.0Look at my last post

mrs.perkins
 3 years ago
Best ResponseYou've already chosen the best response.1so what do i do next

Monkeyball
 3 years ago
Best ResponseYou've already chosen the best response.0wait can you tell me what the original radius equals?
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