Answer:
1. (-2, 3)
2. (3, 3)
3. (3, -1)
4. (-2, -1)
5. 6.4 units
6. 6.4 units
7. DEFG is a rectangle because all the angles are 90°, opposite sides are equal and parallel to each other, and the diagonals bisect each other.
Explanation:
hopefully this helps :)