paulmerlo732
paulmerlo732
11-04-2018
Mathematics
contestada
please help im so confused?
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musiclover10045
musiclover10045
11-04-2018
surface area = PI x rL + PI x r^2
since the answer is in terms of PI, remove PI from the equation:
surface are = rl +r^2
r = 3 and l = 15
3*15 + 3^2 = 45 +9 = 54
answer is 54PI units^2
Answer is C
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