Question

Find the side of a cube whose surface area is 600 cm 2 .

Answer 1

surface area of cube=
$6 \times {l}^{2}$
$600 = 6 \times {l}^{2}$
${l}^{2} = 600 \div 6$
${l}^{2} = 100$
$l = 10cm$





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Answer 2

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TSA OF CUBE
$6a {}^{2}$

♥ 600 = $6 \times a {}^{2}$

♥$600 \div 6$ =$a {}^{2}$

100 = $a{}^{2}$

a = $\sqrt{100}$

= $\sqrt{10 \times 10}$

Therefore a = 10cm..

Side of the cube = 10cm

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