Curved surface area of right circular cone is 308 CM square and its slant height is 14 cm find its height
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curved surface area of cone =308
=>πrl=308
=>22/7*r*14=308
=>r=308*7/22*1/14
=>r=14*7/14
=>r=7cm
And,since cone is right angled so
By PGT,l^2 = h^2 + r^2
14^2 = h^2 + 7^2
=>196 = h^2 + 49
=>h^2 = 196-49
=>h^2 = 147
=>h = √147=√(7*7*3)
=>h = 7√3 cm
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=>πrl=308
=>22/7*r*14=308
=>r=308*7/22*1/14
=>r=14*7/14
=>r=7cm
And,since cone is right angled so
By PGT,l^2 = h^2 + r^2
14^2 = h^2 + 7^2
=>196 = h^2 + 49
=>h^2 = 196-49
=>h^2 = 147
=>h = √147=√(7*7*3)
=>h = 7√3 cm
please mark me as brainliest
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