Question

What is the total surface area of a cylinder with a radius of 7 m and a height of 8 m?

(a) 609.4 m^2

(b) 659.4 m^2

(c) 650.4 m^2

(d) 689.4 m^2

This question was addressed to me in exam.

My question is based upon Surface Area and Volume of Different Solid Shapes topic in division Surface Area and Volumes of Mathematics – Class 10

Answer 1

Right option is (b) 659.4 m^2

The best explanation: Total surface area of a cylinder = 2πr(h + r)

= 2 × \(\frac {22}{7}\) × 7 × (8 + 7)

= 659.4 m^2