Question

If each side of a cube is doubled then its volume

(a) is doubled

(b) becomes 4 times

(c) becomes 6 times

(d) becomes 8 times

Answer 1

Let side of cube in first case =a

Then volume $=a^3$

If side of cube is doubled, then side =2a

$\therefore$ Volume $=(2a{)}^3=8a^3$

$\therefore$ Becomes 8 times