Find the total surface area of each of the following right circular cylinders
(a) diameter of the base = 7 cm height = 21cm
(b) radius of the base = 14 m. height = 6
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Step-by-step explanation:
a T.S.A=2πr(r+h)
2*22/7*7/2(7/2+21)
22*24.5
539cm²
b T.S.A=2πr(r+h)
2*22/7*14(14+6)
88*20
1760m²
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Answer:
482
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