Question

find the lenght of daigonal of the cuboid dimension are 3, 4 cm and 5 cm

Answer 1

Diagonal of cuboid = √ l² +b²+h²

                                = √ 3² + 4² + 5²

                               = √50 = 5√2 cm

OK

MARK ME AS BRAIN LI EST .

THANK U.

Answer 2

Length of diagonal of cuboid is
$\sqrt{ {l}^{2}+ {b}^{2} + {h}^{2} }$
So length of diagonal will be
$\sqrt{ {3}^{2} + {4}^{2} + {5}^{2} }$
$\sqrt{9 + 16 + 25}$
$\sqrt{50}$
$5 \sqrt{2}$