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OpenStudy (anonymous):
I need to find the surface area of a cylinder in terms of pi with a radius of 4 cm and a height of 5cm.
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OpenStudy (zzr0ck3r):
cylinder has surface area \( \large S=2\pi*r*h+2\pi*r^2\)
OpenStudy (anonymous):
okay so I get to \[2\pi20+2\pi16\] but I am not sure what I multiply together to get the final answer
OpenStudy (zzr0ck3r):
that is the final answer
OpenStudy (zzr0ck3r):
\(2\pi20+2\pi16=2\pi(20+16)=2\pi*36=72\pi\)
OpenStudy (anonymous):
So 72pi is the final answer? Thank you so much!
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OpenStudy (zzr0ck3r):
correct
OpenStudy (zzr0ck3r):
np
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