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Question
If the length of the diagonal of a cube is `5sqrt(3)` cm, find the total surface area.
Length of the diagonal of the cube = `square`
So, `square` = `5sqrt(3)`
⇒ Side = `square`
Total surface area of cube = `square`
= `square` × `square` × `square`
= `square` cm2
Hence, the total surface area is `square`.
Solution
Length of the diagonal of the cube = `bb(5sqrt(3) cm)`
So, `bb("Side" xx sqrt(3))` = `5sqrt(3)`
⇒ Side = 5
Total surface area of cube = 6 × Side2
= 6 × 5 × 5
= 150 cm2
Hence, the total surface area is 150 m2.
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