Find the surface area of a cylinder with a height of 9cm and a base diameter of 12cm
Carol H.
answered 02/25/19
Masters' Degree in Mathematics with 35 years Teaching Experience.
d = 12
r = (1/2)d
r = 6 cm
SA = 2πr2 + 2πrh
SA = 2π(6)2 + 2π(6)(9)
SA = 2π(36) + 2π(54)
SA = 72π + 108π
SA = 180π cm2
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