What is the total surface area of a solid right circular cylinder of radius 7 cm and height 8 cm? (π = 22/7)
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 660 cm2.
Given that
The radius of a cylinder (r) = 7 cm
The height of the cylinder (h) = 8 cm
We know that,
The total surface area of a solid cylinder TSA = 2πr (h + r)
So,
TSA = 2 × 22/7 × 7 × (8 + 7) = 22 × 30 = 660 cm2