Answer:
The square cake has a larger area
Step-by-step explanation:
Square cake
Area = L*L = (9inch*9inch) = 81 inch^2
Round cake
(8 inches corresponds to the diameter, so the radius is 4 inches)
Area = pi*(radius^2) = 3.1416*(8inch/2)^2 = 50.265 inch^2
Since 81 inch^2 > 50.265 inch^2
The Square cake has a bigger area