A solid hemisphere with radius 8 cm is painted. Find its total surface area.
Show answer & explanation
Correct answer: A
Explanation
Total surface area of a hemisphere = 3πr²
Given,
r = 8 cm
Therefore, total surface area = 3 × π × 8²
= 3 × π × 64
= 192π
= 192 × 22/7
= 602.8 sq cm