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

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

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

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

Monkeyball Group TitleBest ResponseYou've already chosen the best response.0
\[8*\pi\]
 2 years ago

Monkeyball Group TitleBest ResponseYou've already chosen the best response.0
8 pi is 4 times bigger than 2 pi
 2 years ago

mrs.perkins Group TitleBest ResponseYou've already chosen the best response.1
so whats the answer
 2 years ago

Monkeyball Group TitleBest ResponseYou've already chosen the best response.0
Look at my last post
 2 years ago

mrs.perkins Group TitleBest ResponseYou've already chosen the best response.1
so what do i do next
 2 years ago

mrs.perkins Group TitleBest ResponseYou've already chosen the best response.1
so is 32
 2 years ago

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

mrs.perkins Group TitleBest ResponseYou've already chosen the best response.1
i really dont know
 2 years ago
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