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anonymous
 one year ago
WILL MEDAL AND FAN
anonymous
 one year ago
WILL MEDAL AND FAN

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kc_kennylau
 one year ago
Best ResponseYou've already chosen the best response.1The circumference (length of curve) of a circle is given by \(2 \pi r\), where \(r\) is the radius.

kc_kennylau
 one year ago
Best ResponseYou've already chosen the best response.1In this case, the radius is \(30 m\).

kc_kennylau
 one year ago
Best ResponseYou've already chosen the best response.1\({XPY}\) is \(\frac34\) of the circle.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0So what does that mean? :l

kc_kennylau
 one year ago
Best ResponseYou've already chosen the best response.1The circumference (length of curve) of the whole circle is \(2\pi(30)\) which is \(60\pi\)

kc_kennylau
 one year ago
Best ResponseYou've already chosen the best response.1The \(\dfrac34\) of it would be \(\left(\dfrac34\right)60\pi\) which would be \(45\pi\).

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Oh I suspected it was that one! Thank you very much
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