Q8 of 76 Page 18

If each edge of a cube is increased by 50%, the percentage increase in its surface area is

Given,


Increment in each edge of a cube = 50%


Let original length of edge of cube = a


Original surface area of cube = 6 a2


After increment ,


New length of edge = a + a


New surface area of cube = 6a2 = 6×


Increase in area =


% increase in area =

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