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A semicircular thin sheet of metal of diameter 28m is bent and an open conical cup is made. Find the capacity of the cup.

Asked by R ADITYA NARAYANAN 23rd October 2013, 7:32 PM
Answered by Expert
When the semi-circular sheet is bent into an open conical cup, the radius of the sheet becomes slant height of the cup and circumference of the sheet becomes circumference of the base of the cup.
Therefore, l = slant height of the cup = 14 cm.
Let r cm be the radius and h cm the height(depth) of the cup. Then,
circumference of the base of the cup = circumference of the sheet
Answered by Expert 23rd October 2013, 10:36 PM
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