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Multiple choice

A solid hemisphere is of radius 11 cm. The curved surface area in sq. cm is -

  1. 1140.85

  2. 1386.00

  3. 760.57

  4. 860.57

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Curved surface area of a hemisphere = 2πr² = 2 × 3.14159 × 11² = 2 × 3.14159 × 121 = 760.57 sq cm. This is half the total surface area of a sphere (4πr²), covering only the curved portion without the base.

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