A joker 's cap is in the form of a right circular cone of base radius 7cm and height 24 cm. Find the area of the sheet required to make 10 such caps .
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Step-by-step explanation:
Find the area of 1 cone: Area of cone =πr(r+h)
=22/7*7(7+24)
=22*31
=682sq.cm
Now, are of sheet required to make 10 caps=682*10
=6820sq.cm
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