The perimeter of base of a right circular cone is 132 cm. If the height of the cone is 72 cm, then what is the total surface area (in cm) of the cone?
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Given: Perimeter of base= 132cm
2πr=132cm
πr=66
22/7*r=66
r=66*7/22
r=21 cm
H=72 cm
T.S.A.=2πr(r+h)
2*22/7*21(21+72)
44*3*93=12276 cm sq
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