Question

If a triangle ABC is classified as a right triangle, which statement is true?

- All three angles of triangle ABC are congruent.
-Two slopes of triangle ABC are opposite reciprocals
- All three sides of triangle ABC are congruent.
- Two slopes of triangle ABC are congruent.

Answer 1

I know its not A..

Answer 2

c

Answer 3

there are 2 lines are perpendicluar, so the slope of that lines when mulitplied is -1, in other words "Two slopes of triangle ABC are opposite reciprocals".

it is B