Question

AS
If each edge of a cube is reduced by 25%, find the percentage decrease in its total surface area​

Answer 1

Answer:

surface area=6*(100)^2

side decrease by 25%

surface area become=6*(75)^2

decrease=6(100)^2-6(75)^2

=6*175*25

%decrease=6*175*25/6*100*100 *100

=175/4=43.75%