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Question
Two identical solid hemispheres of equal base radius r cm are stuck together along their bases. The total surface area of the combination is 6πr2.
Options
True
False
Solution
This statement is False.
Explanation:
Curved surface area of a hemisphere = 2πr2
Here, two identical solid hemispheres of equal radius are stuck together.
So, base of both hemispheres is common.
∴ Total surface area of the combination
= 2πr2 + 2πr2
= 4πr2
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