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The total surface area of a hemisphere of radius 7 cm is ______.

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Question

The total surface area of a hemisphere of radius 7 cm is ______.

Options

  • (588π) cm2

  • (392π) cm2

  • (147π) cm2

  • (98π) cm2

MCQ
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Solution

The total surface area of a hemisphere of radius 7 cm is (147π) cm2.

Explanation:

Radius  of the hemisphere = 7 cm

Total curved surface area of hemisphere + Area of the circle = 3πr

= (3π × 7 × 7) cm2  

= (147π) cm2 

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Chapter 17: Volumes and Surface Areas of Solids - MULTIPLE-CHOICE QUESTIONS (MCQ) [Page 836]

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R.S. Aggarwal Mathematics [English] Class 10
Chapter 17 Volumes and Surface Areas of Solids
MULTIPLE-CHOICE QUESTIONS (MCQ) | Q 70. | Page 836
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