If a square has a diagonal of length 10, what is its area?

The area of a square can be calculated using the formula : \n \n Area = Side ^ 2 \n \n where " Side " is the length of one side of the square . \n \n In this case , the diagonal of the square is 1 0 , so the side of the square is 1 0 / 2 = 5 . \n \n There fore , the area of the square is : \n \n Area = 5 ^ 2 = 2 5 \n \n So the area of the square is 2 5 square units . </s>