Mensurationhard · Past Paper
If the side of a cube is increased by 50%, the surface area increases by:
A50%
B100%
C125%
D225%
✓ Correct Answer: C — 125%
New side = 1.5l. New Area = 6(1.5l)² = 2.25 * (6l²). Increase = 1.25 or 125%.
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