Answer:
sorry i can not anderstand pls
Answer:
Options A, C, and F
Step-by-step explanation:
A right triangle contains a right angle, so it must have two sides that are perpendicular. If the slopes of two sides can be shown to be negative reciprocals of each other, then it can be concluded that a right angle is formed. If a triangle contains a right angle, then it is a right triangle.
2nd one is the correct one I think
