It is possible to test if a quadrilateral is a square by performing calculations on its diagonals, in this case, AC, and BD. A quadrilateral is a square if all three of the following conditions are true

The diagonals intersect at their midpoints.
The diagonals are both the same length.
The diagonals are perpendicular.
Based on this information, is the figure below a square?

If so, give the results of all calculations that allow you to verify that it is.
If it is not a square, describe which condition or conditions are not met.
5Points
A cartesian coordinate plane with the vertical axis labeled y from negative 20 to 9 and the horizontal axis labeled x from negative 14 to 17. Point A is at the point negative 4 comma 6 and point B is at the point negative 12 comma negative 12. The points form segment A B. Point C at the point 6 comma negative 18 forms segment B C. Point D at the point 13 comma negative 1 forms segment C D and D A.
Your response should contain at least 3 complete sentences.