Question

The height of a right circular cone whose radius is 3cm and slant height is 5cm will be
a) 12cm b) 4cm c) 13cm d) 5cm

Answer 1

Answer:

h=

$\sqrt{l { }^{2} - x { }^{2} }$

$\sqrt{5 {}^{2} - 3 {}^{2} } \\ \sqrt{25 - 9} \\ \sqrt{16} \\ 4cm$