Question

find T.S.A of cuboids of l,b and h is given below . 18cm,12cm,10cm​

Answer 1

$\blue{\bold{\underline{\underline{Answer:}}}}$

$\green{\therefore{\text{T.S.A\:of\:cuboid=1032\:cm}^{2}}}$

$\orange{\bold{\underline{\underline{Step-by-step\:explanation:}}}}$

$\green{\underline\bold{given:}}\\ :\implies\text{Length(l)=18\: cm}\\\\ :\implies\text{Breadth(b)=12\:cm}\\\\ :\implies\text{Height(h)=10\:cm}\\\\\red{\underline\bold{to\:find:}}\\ :\implies\text{T.S.A \: of \: cuboid=?}$

•  According to given question :

$\bold{as \: we \: know \: that} \\ :\implies\text{T.S.A \: of \: cuboid} =2(lb + bh + hl) \\\\ :\implies\text{T.S.A\:of\:cuboid} = 2(18\times12+12\times10+10\times18)\\\\ :\implies\text{T.S.A \: of \: cuboid}=2(216+ 120 + 180) \\\\ :\implies\text{T.S.A \: of \: cuboid}=2\times516\\\\ \green{:\implies\text{T.S.A\:of\:cuboid=1032\:{cm}}^{2}}\\\\\purple{\text{some \: formula \: related \: to \: this \: topic}} \\\pink{\circ\:\text{L.S.A\: of \: cuboid=}2(l + b)\times h}\\\\\pink{\circ \:\text{Volume \: of \: cuboid = }l\times b\times h}$