Cut the four corners of a square cardboard with a side length of 4A into a square with a side length of a to make a rectangle without a cover and calculate the total area of the figure after cutting 1. Calculate the total area of the cut figure? 2. Calculate the bottom area of the cuboid box?

Cut the four corners of a square cardboard with a side length of 4A into a square with a side length of a to make a rectangle without a cover and calculate the total area of the figure after cutting 1. Calculate the total area of the cut figure? 2. Calculate the bottom area of the cuboid box?

Find the total area of the cut figure?
4a*4a-4*a*a=12a^2
&Find the bottom area of the box?
The bottom is a square
Side length = 4a-2a = 2A
Area = 2A * 2A = 4A ^ 2