Question

total surface are of cube is 864sq cm . find the volume

Answer 1

total surface area = 6*a^2
864=6*a^2
a^2=864/6
a^2=144
a=√144
a=12cm
volume =a^3
= 12^3
=1728cm^3

Answer 2

$\textbf{ QUESTION}$

Total surface are of cube is 864sq cm . find the volume ?

$\textbf{ SOLUTION}$

$\textbf{ Given}$

TSA of cube is 864 cm²

$\textbf{ To Find}$

Volume of cube

NOW,

TSA = 6a²
864 = 6a²
a² = 864/6
a² = 144
a = √144
a = 12cm

Put the value of ‘ a ’

Volume of cube = a³
=> 12³
=> 12 × 12 × 12
=> 1728 cm³

The volume of cube is 1728 cm³.

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$\huge\bold{Thanks}$