Question

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Here's a question :-

➦ The radii of the ends of a frustum of a cone 45 cm high are 28 cm and 7 cm (see figure). Find its volume, the curved surface area and the total surface area (Take π = 22/7).

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Answer 1

Answer:

the explanation is given above

Answer 2

Question:

The radii of the ends of a frustum of a cone 45 cm high are 28 cm and 7 cm (see figure). Find its volume, the curved surface area and the total surface area (Take π = 22/7).

Full Solution:

Given in the attachment .

More To Know:

• Frustum is a Latin word. The meaning of this is ' piece cut off ' . It's plural is ' frusta ' .

• When a right circular cone is sliced by a plane parallel to its base, then the cone having two separate parts is called a Frustum.

Note:

Formulae are also given in the attachment.