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.
Solution:
Base radius of conical cap
cm
Height of conical cap
cm
Slant height of conical cap
cm
Curved Surface area of 1 cap = Area of the sheet required to make 1 cap
Curved Surface area of 10 caps = Area of the sheet required to make 10 caps
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