Question

Total surface area of cube is 864sq.cm.find its volume

Answer 1

Hi !!!

Here is your answer,

T.S.A of cube = 864 cm²
➡6(side)² = 864
➡(side)² = 864/6
➡(side)² = 144
➡side = √144
➡side = 12

Each side of cube = 12cm

Volume of cube
= (side)³ = (12)³ = 1728

Volume of cube = 1728cm³


Hope it helps.

Answer 2

$Hello... \: \: \\ Answer... \: \: \\ \\ T. S. A. \: \: of \: cube \: = 864 {cm}^{2} \\ \\ = > 6 \: (side {)}^{2} = 864 \\ \\ = > (side {)}^{2} = \frac{864}{6} \\ \\ = > (side {)}^{2} = 144 \\ \\ = > side = \sqrt{144} \\ \\ = > side = 12 \\ \\ Each \: \: side \: \: of \: \: the \: \: cube = 12cm \: \: \\ \\ Volume \: \: of \: \: cube = {(side)}^{3} \\ \\ = {(12)}^{3} = 1728 \\ \\ = Volume \: \: of \: \: cube = {1728cm}^{3} \\ \\ \\ \\ Hope \: \: it \: \: helped$
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