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Question

Find the diameter (D) and the height (H) of the 3D figure obtained on rotating the given triangle along its vertical axis.


A
D = 4 cm, H = 8 cm
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B
D = 8 cm, H = 8 cm
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C
D = 4 cm, H = 7 cm
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D
D = 8 cm, H = 7 cm
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Solution

The correct option is D D = 8 cm, H = 7 cm
On rotating the given triangle along its vertical axis, the 3D shape obtained will be a cone having the following dimensions:



Hence,
Diameter of the cone = 8 cm
Height of the cone = 7 cm


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