# The Edge of the cube is increased by 20%. What is the %age increase in its surface area?

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if we increase it by 20%=12cm

#surface area with out increasing edge=6l^2

6 x 10^2=600cm^2

#surface area with increased edge=6l^2

6 x 12^2= 864cm^2

#increase in surface area = 864-600=264

~ %age increased in surface area = 264/600 x 100=44%

plz mark d Best...

Let the edge of the cube be a

Then the Surface Area(S.A) = 6 × a²

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Thank you.