A joker’s cap is in the form of a right circular cone of base radius 7 cm and height 24 cm. Find the area of the sheet required to make 10 such caps
Radius (r) = 7cm
Height (h) = 24 cm
Slant height (l) = 
= 
= 25m
CSA (1 conical cap) = 
= (
* 7 * 25)
= 550 cm2
CSA of 10 conical caps = (10 × 550)
= 5500 cm2
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