A joker's cap in the form of right circular cone of base radius 7cm and 24cm. Find area of sheet required to make 10 such caps.
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Answer: 5500 cm².
Step-by-step explanation:
Given,
r = 7 cm
h = 24 cm
l = √r²+h²
l = √(7)²+(24)²
l = √49+ 576
l = √625
l = 25 cm
Curved surface area of cone = πr²h
We've taken curved surface area because the base will not included to make the cap of jokers.
22/7 × 7×7×24
550 cm²
Area of 10 such caps = Area of 1 cap×10
550 × 10
5500 cm²
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