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What is the formula to find the height of an iron pillar consisting of a cylinder and a cone mounted on it?

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in Mathematics - Class 10 by (506k points)
What is the formula to find the height of an iron pillar consisting of a cylinder and a cone mounted on it?

(a) The radius of the cylinder + 2(height of the cone)

(b) Height of the cylinder + 2(height of the cone)

(c) The radius of the cylinder + radius of the cone

(d) Height of the cylinder + height of the cone

I have been asked this question in an international level competition.

The query is from Surface Area and Volume of Combination of Solids topic in section Surface Area and Volumes of Mathematics – Class 10

1 Answer

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Best answer
The correct choice is (d) Height of the cylinder + height of the cone

Easy explanation: To find the height of an iron pillar consisting of a cylinder and a cone mounted on it, we require heights of both cone and cylinder.

Height of the pillar = height of the cylinder + height of the cone.

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