Question

When each side of a cube is doubled, determine percentage
increase in its surface area.
A: 400%
B: 800%
C: 200%
D: 300%​

Answer 1

Answer:

D) 300%

Step-by-step explanation:

Percentage increase in a quantity = [( increase in the value of quantity)/ (original value)]x100=[6(2l)^2–6l^2]/6l^2x100=3x100=300%.