Question

The total surface aarea of a cube is864cm find its volume

Answer 1

$\huge\bold\red{ANSWER}$

$t.s.a \: of \: cube = 6 {edge}^{2}$

${edge}^{2} = 864 \div 6$

${edge}^{2} = 144$

$edge = \sqrt{144}$

$edge = 12$

$volume = {edge}^{3}$

$volume \: = {12}^{3}$

$volume \: = 1728 {cm}^{3}$
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Answer 2

total surface area of cube =a^3
863=a^3

$a = \sqrt[3]{863 }$