You ONLY multiply the length and width, which is the two sides that aren't the same. If you can't figure it out, multiply one side by 2 and the other side by two, and add those products together to get the area.
Here is the formula for area and perimeter:
Area: L x W
Perimeter: 2L +2W
Good luck with your math hmwk!
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because you do
Area you multiply 2 sides and perimeter you add all the sides together.
definition of a square: all sides are congruent (equal) Therefore, all sides are 2.5 feet. To find area, you multiply length by width....so multiply 2.5x2.5
Perimeter: add all sides area: multiply length times width for rectangles
for area you multiply length times width and for perimeter you add all of the sides together