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Mensuration – II (Volumes and Surface Areas of a Cuboid and a Cube) — MATHS STD 8 — Question

Gujarat BoardEnglish MediumSTD 8MATHSMensuration – II (Volumes and Surface Areas of a Cuboid and a Cube)2 Marks
Question
Find the surface area of a cube whose edge is: $3\ cm$
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Answer

Edge of cube $(a) = 3\ cm$
$ \therefore \text { Surface area }=6 \mathrm{a}^2=6 \times(3)^2 \mathrm{~m}^2 $
$ =6 \times 9 \mathrm{~cm}^2=54 \mathrm{~cm}^2 $

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