Question

find the length of the diagonal of a cuboid with length equal to 10 centimetre is equal to 8 cm height equal to 4 cm

Answer 1

the formula for calculating length of the diagonal of the cuboid is
$\sqrt{ {l}^{2} + {b}^{2} + {h}^{2} }$
so d =√ 10^2 + 8^2 +4^2
d=√100+64+16
d=√180 cm
d= 6√5 cm
that's all
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