Answer:
A. (-8,8)
B. (4,8)
C. (-8,-3)
D. (4,-3)
Step-by-step explanation:
Verticie A is at (-8,8)
Verticie B is at (4,8)
Verticie C is at (-8,-3)
Verticie D is at (4,-3)
All these angles are 90°.
