Answer:
Area of a square with side lengths of 12: 144 units^2
Area of a square with side lengths of 2.5 units: 6.25 units^2
Step-by-step explanation:
To find the area of a square using side lengths you need to square the length of the side.
For the first question you square 12, so 12 x 12 would give you your area. Therefor the area is 144 units^2
For the second question you square 2.5, so 2.5 x 2.5 would give you the area. Therefor the area is 6.25 units^2