Explanation:
1. Both pairs of opposite sides are congruent Distance Formula
2. Both pairs of opposite sides are parallel Slope Formula
3.Diagonals are congruent Distance Formula
4. Diagonals bisect each other Midpoint Formula
5.Diagonals are perpendicular Slope Formula
6.Sides of polygon create a right angle Slope Formula
7.A triangle is isosceles / equilateral Distance Formula