Question

In a cuboid l=5cm,b=3cm,h=4cm,find its digonal

Answer 1

$formula \: for \: longest \: diagonal \\ of \: cuboid \: = >$

$\sqrt{ {l}^{2} + {b}^{2} + {c}^{2} }$

$\sqrt{ {5}^{2} + {4}^{2} + {3}^{2} }$

$\sqrt{25 + 16 + 9}$

$\sqrt{50}$

$\sqrt{50} = 7.071$

$\underline{hope \: it \: helps}$

Answer 2

Diagonal of cuboid=√5^2+3^2+4^2
=√25+9+16=√50=5√2