Question

solve this plz its urgent........no spamming​

Answer 1

Answer:

Let a be the length of side of the original cube.

Hence length of side of new cube would be 2a

The volume of a cube is given by the formula

Volume of a cube a³

Volume of new cube = (2a)³

8a = 64000

a = 8000

a = ³√8000

a = 20 cm

Hence the length of side of the original cube = 20 cm.

Area of one face of a cube is given by the formula,

Area of one face = a²

Substituting the datas we get,

Area of one face = 20 x 20

Area of one face 400 cm²

Notes: - The total surface area of a cube is given by the equation,

TSA of a cube = 6 a²

→Volume of a cube is given by the formula, Volume of a cube

Explanation:

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