Question

A cubical box has each edge 10 cm and another cuboidal box is 12.5 cm long, 10 cm
wide and 8 cm high. Which box has the greater lateral surface area and by how much?​

Answer 1

Answer:

2nd one has greater lateral surface

Explanation:

10*10=100cm² for 1st one

and for 2nd one 12.5*10=125cm²

Answer 2

Answer:

$\: lateral \: surface \: of \: cube = {4a}^{2} \\ = >lateral \: surface \: of \: cube = 4 \times {10}^{2} \\ = > 400 {cm}^{2} \\lateral \: surface \: of \: cuboid = 2(l + b) \times h \\ = > 2(12.5 + 10) \times 8 \\ = > 360 {cm}^{2} \\ so \: from \: the \: above \: solution \ \\ it \: is \: proved \: that \: \\ lateral \: surface \: of \: cube \: is \: greater \: and \: by \\ (400 - 360) {cm}^{2} \\ = > 40 {cm}^{2} (ans)$

Explanation:

Done by Aritra kar.

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