"Question 3 Find the total surface area of a hemisphere of radius 10 cm. [Use π = 3.14]
Class 9 - Math - Surface Areas and Volumes Page 225"
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Answered by
252
Hemisphere:
When a plane through the centre of a sphere divides the sphere into 2 equal parts then these two equal parts are called hemisphere.
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Given: radius(r) = 10 cm
Total surface area of hemisphere = 3πr²
= (3 × 3.14 × 10 ×10)
= 9.42×100
= 942 cm²
Hence, the total surface area of a hemisphere is 942 cm²
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Hope this will help you..
Answered by
139
Given,Radius=10cm
Total surface area=3πr²
=3(3.14)(10)²
=942 cm²
The total surface area of a hemisphere of radius 10 cm is 942 cm²
Total surface area=3πr²
=3(3.14)(10)²
=942 cm²
The total surface area of a hemisphere of radius 10 cm is 942 cm²
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