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An oil funnel made of tin sheet consists of a 10 cm Jong cylindrical portion attached to a frustum of a cone. If the total height is 22 cm, diameter of the cylindrical portion is 8 cm and the diameter of the top of the funnel is 18 cm, find the area of the tin sheet required to make the funnel (see Fig. 13.25).

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Question 5
An oil funnel made of tin sheet consists of a 10 cm long cylindrical portion attached to a frustum of a cone. If the total height is 22 cm, diameter of the cylindrical portion is 8 cm and diameter of the top of the funnel is 18 cm, find the area of the tin sheet required to make the funnel.


\( 8 cm \)


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Q2

An oil funnel made of tin sheet consists of a 10 cm long cylindrical portion attached to a frustum of a cone. If the total height is 22 cm, diameter of the cylindrical portion is 8 cm and the diameter of the top of the funnel is 18 cm, find the area of the tin sheet required to make the funnel.

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Q3

An oil funnel made of the tin sheet consists of a $ 10 \mathrm{cm}$ long cylindrical portion attached to a frustum of a cone. If the total height is $ 22 \mathrm{cm}$, the diameter of the cylindrical portion is $ 8 \mathrm{cm}$ and the diameter of the top of the funnel is $ 18 \mathrm{cm}$, find the area of the tin sheet required to make the funnel (see fig.).


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Q4
An oil funnel of tin sheet consists of a cylindrical portion 10 cm long attached to a frustum of a cone. If the total height is 22 cm, the diameter of the cylindrical portion be 8 cm and the diameter of the top of the funnel be 18 cm, then find the area of the tin sheet required to make the funnel.

[3]
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