Question

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 (see Fig. 13.25).​

Answer 1

Answer:

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 the given Fig. Let r1 and h1 be respectively the radius and height of cylindrical part. = 782.57 cm2.

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