If edge of a cube is doubled, (i) how many times will its surface area increase?
(ii) how many ti will its volume increase?
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Answer:
sa will increase 4 times
volume will increase 8times
Step-by-step explanation:
let original side =x
when side is doubled =2x
original sa=6x^2
new sa=6*(2x)^2=24x^2
original volume=x^3
new volume=(2x)^3=8x^3
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