Question

calculate the surface area of the cube with edges 3.2 m​

Answer 1

$\large\sf\underline{Given:}$

• Edges / sides = 3.2 m

‎

$\large\sf\underline{To\:find:}$

• Surface area of the cube

‎

$\large\sf\underline{Solution:}$

We know ,

$\large{\mathfrak\purple{Surface\:area\:of\:cube\:=\:6a^{2}}}$

• Let's substitute the value in the formula

$\sf:\implies\:Surface\:area\:=6 \times (3.2)^{2}$

$\sf:\implies\:Surface\:area\:=6 \times 3.2 \times 3.2$

$\sf:\implies\:Surface\:area\:=6 \times \frac{32}{10} \times \frac{32}{10}$

$\sf:\implies\:Surface\:area\:= \frac{192}{10} \times \frac{32}{10}$

$\sf:\implies\:Surface\:area\:= \frac{6144}{100}$

${\sf{{\red{:\implies\:Surface\:area\:=\:61.44\:m}}}}$

‎

══════════════════╕

$\small\rm\purple\star\:\underline{Some\:more\: Formula\:for\:cube:}$

⠀‎Surface area = $\sf\:6a^{2}$

⠀‎Volume = $\sf\:a^{3}$

⠀‎Diagonal = $\sf\:\sqrt{3}a$

╘══════════════════

‎

!! Hope it helps !!