Question

What is the skeletal formula to find the T.S.A of the tank consisting of a circular cylinder with a hemisphere attached on either end?

(a) 2πrh + 2(2πr^3)

(b) 2πrh + 2(πr^2)

(c) 2πrh + 2(\(\frac {2}{3}\)πr^2)

(d) 2πrh + 2(2πr^2)

The question was asked by my school principal while I was bunking the class.

I need to ask this question from Surface Area and Volume of Combination of Solids in portion Surface Area and Volumes of Mathematics – Class 10

Answer 1

Correct answer is (d) 2πrh + 2(2πr^2)

The best I can explain: T.S.A of the tank = C.S.A of the cylinder + 2(C.S.A of the hemisphere)

= 2πrh + 2(2πr^2)