slant height of a cone is 21 cm and radius is 10 cm that is a jokers cap how much cloth is needed to make such a cap
Answers
Answered by
3
Answer:
660
Step-by-step explanation:
csa of cone is pi rl
22/7×10 ×21 = 660
the cloth required for joker cap is 660
Answered by
1
Answer:
TSA of cone = pie ×radius (slant height + radius)
Step-by-step explanation:
cloth is needed = TSA of cone - area of cross section
=22/7×10×21
= 22×10×3
= 660cm^2
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