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The slant height of a frustum of cone is 4 cm and the circumference of its circular ends are 22cm and 10 cm. Find the curved surface area of

Home/Math/The slant height of a frustum of cone is 4 cm and the circumference of its circular ends are 22cm and 10 cm. Find the curved surface area of

The slant height of a frustum of cone is 4 cm and the circumference of its circular ends are 22cm and 10 cm. Find the curved surface area of

Question

The slant height of a frustum of cone is 4 cm and the circumference of its circular ends are 22cm and 10 cm. Find the curved surface area of the frustum .
4 points
64 sq cm
128 sq cm
880 sq cm

## Answers ( )

Given:To Find:Solution:## Case 1 :-

## Case 2 :-

Now Curved surface area of frustum is

Curved surface area of frustum =

[tex]\sf\pi\times\dfrac{11+5}{\pi}\times 4[/tex]

[tex]\sf\pi\times\dfrac{16}{\pi}\times 4[/tex]

[tex]\sf\ 64cm^{2}[/tex]