Question

Question 7(Multiple Choice Worth 1 points)
(04.01 MC)
Which characteristics will prove that ADEF is a right, isosceles triangle?
DE is larger than EF. and their slopes are the same
DE is larger than EF and their slopes are opposite reciprocals.
The lengths of DE and EF are congruent, and their slopes are the same.
The lengths of DE and EF are congruent, and their slopes are opposite reciprocals.

Answer 1

Answer:

The lengths of DE and EF are congruent, and their slopes are opposite reciprocals.

Step-by-step explanation:

The characteristics will prove that Δ DEF is a right isosceles triangle is the lengths of DE and EF are congruent, and their slopes are opposite reciprocals.

Now, the equal sides of DE = EF make the triangle Δ DEF an isosceles triangle and the slopes of two perpendicular lines are always the opposite reciprocals.

Hence, the slopes of DE and EF are opposite reciprocals make the triangle Δ DEF a right triangle. (Answer)