Find the total surface area of a closed cylinder having a base radius of 70 m and a height of 110 m. [Use π = \(22\over7\)]
79,200 m2
The correct answer is Option 4 i.e. 79,200 m2.
The total surface area of a closed cylinder(TSA) = 2πr(r + h)
TSA = 2 × \(22\over7\) × 70 × (70 + 110)
⇒ 44 × 10 × 180 = 79,200 m2
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