Question 104

What is the volume of a cube (in cu.cm) whosetotal surface area is 384 sq. cms?

Solution

let the side of cube is = a

then wholesale total area = 6 $$r^{2}$$

given that wholesale total area = 384 sq. cms

then

6 $$a^{2}$$ = 384

a = 8

then we know that the volume of the cube = $$a^{3}$$ = 512 sq. cms Aanswer

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