Question

The slant height and radius of a cone are 10cm and 8cm respectively then its height is
A) O 4cm
B) 5cm
C) 6cm
D) 8cm​

Answer 1

4 cm done ok man bhai why 20 character

Answer 2

$\underline {\pink{ Dimensions \:of \:a \:cone :}}$

$Slant \: height (l) = 10 \:cm$

$Radius (r) = 8 \:cm$

$Let \: the \:height = h \:cm$

$\boxed{\blue{ h = \sqrt{l^{2} - r^{2}} }}$

$h = \sqrt{ 10^{2} - 8^{2}}$

$\implies h = \sqrt{ 100 - 64 }$

$\implies h = \sqrt{ 36 }$

$\implies h = \sqrt{ 6^{2} }$

$\implies h = 6 \:cm$

Therefore.,

$\red{ Height \: of \:the \:cone } \green { = 6 \:cm }$

•••♪