Question 68

The perimeter of one face of a cube is 20 cm. Its volume will be

Solution

Let each side of the cube be $$a$$

One face of a cube is a square with perimeter 20 cm

=> 4 * $$a$$ = 20

=> $$a$$ = 5

Volume of cube = $$a^3$$

= $$5^3$$ = 125 $$cm^3$$

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