Answer:
The answer is 225 square units.
Step-by-step explanation:
Bill has to figure out the area of a square yard.
One side of his yard is equal to the length of his garage.
The dimension of his rectangular garage are 15 x 10 units. Means the length is 15 units and width is 10 units.
So, the area of the square yard will be = [tex]15\times15=225[/tex] square units.
Therefore, the answer is 225 square units.
