find the area of the curved surface of a circular cone given area of a base 1 54 cm square height 24cm
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H= 24 cm
Area of base = 154 cm²
πr² = 154
22/7 *r² = 154
r² = 154*7 / 22
r² = 7*7
r = 7 cm
L²( length of curved portion) = h²+r²
= (24)²+(7)2=576+49=625
L = √625 = 25 cm
Area of curved surface= πrl= 22/7 * 7 * 25= 22*25= 550 cm²
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Area of base = 154 cm²
πr² = 154
22/7 *r² = 154
r² = 154*7 / 22
r² = 7*7
r = 7 cm
L²( length of curved portion) = h²+r²
= (24)²+(7)2=576+49=625
L = √625 = 25 cm
Area of curved surface= πrl= 22/7 * 7 * 25= 22*25= 550 cm²
Hope you will understand..
Thank you...
please mark it as brainliest.
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