The height and slant height of a cone are 7 cm and 25 cm respectively. Then its radius is
The height and slant height of a cone are 7 cm and 25 cm respectively. Then its radius is
A) 10 cm
B) 14 cm
C) 24 cm
D) 12.5 cm
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Correct option is (C) 24 cm
Radius of cone is \(r=\sqrt{l^2-h^2}\)
\(=\sqrt{25^2-7^2}=\sqrt{625-49}=\sqrt{576}\)
= 24 cm
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