Question

The diagonal of a cube is 5√3cm. Find its edge and the lateral surface area.​

Answer 1

Answer:

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Step-by-step explanation:

$so \: we \: know \: that \\ diagonal \: of \: cube = \sqrt{3} \times side$

$so \: here \: The \: diagonal \: of a \: cube \: is \: 5√3cm$

$now \: thus \: then \\ 5 \sqrt{3} = \sqrt{ 3} \times side \\ ie \: side \: of \: cube = 5cm$

$ie \: nothing \: but \: \: its \: edge = 5cm$

$so \: thus \: we \: know \: that \\ lateral \: surface \: ie \: curved \: surface \: area \: of \: cube = 4side \: square$

$= 4 \times (5)square \\ = 4 \times5 \times 5 \\ = 4 \times 25 \\ = 100 \: cm.square$