if each side of a cube is decreased by 29percent then decrease in surface area
Answer (1)
18th Jul, 2020
If each side of the cube is decreased by 29% then the surface area deceases by 49.59%
Explanation:
Length of the new cube=L-29% of L
=L-(29/100xL)
=L-29L/100
=(100L-29L)/100
=71L/100
=0.71L
Surface area with side of 0.71L=6(0.71L)^2
=6 x 0.5041L^2
=3.0246L^2
Decrease =6L^2-3.0246L^2
=2.9754L^2
Decrease Percentage=(2.9754L^2 x 2)/6L^2 %
=49.59%
Hope this helps you!
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