A small temple dome is shaped like a hemisphere of radius 3.5 m. How much area (in square meters) must be painted on the curved surface?
Show answer & explanation
Correct answer: B
Explanation
Given:
Radius (r) = 3.5 m
By the formula:
Curved surface area of the hemisphere = 2πr²
Area = 2 × π × (3.5)²
= 2 × (22/7) × 12.25
= (44/7) × 12.25 = 76.92 m²