Question

The dimensions of a pyramid are increased by 1100%. The percentage increase in surface area is

The new dimensions are ___times the original dimensions, and the new surface area is ___times the original surface area. The increase in surface area is___%.

Answer 1

12, 144, 14300%

Answer 2

(answer explained)
1110% = dimensions x 12


12^2= 144

x 1444 original surface area

% increase = 144-1/1 x 100
=14300
Therefore the surface area is 14300% larger