1.

A cone whose height and radius are 6 cm and 8 cm respectively. Then its slant height is A) 14 cm B) 10 cm C) 11 cm D) 12 cm

Answer»

Correct option is (B) 10 cm

Slant height of cone is \(l=\sqrt{r^2+h^2}\)

\(=\sqrt{6^2+8^2}=\sqrt{36+64}\)

\(=\sqrt{100}\) = 10 cm

Correct option is  B) 10 cm



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