Help Please! #3

Question

Help Please! #3

anonymous · Answer

attachment

goformit100 · Answer

|dw:1363546845364:dw|

directrix · Answer

@maddierawr  Have you studied the Triangle Proportionally Theorem yet?

anonymous · Answer

no

directrix · Answer

So, if a step of the proof read "PQ = 1/2 RS," you would not know a theorem to cite as the reason? I ask because I don't know where in your course of study in Geometry this theorem you are proving falls.

anonymous · Answer

i know the mdpt and bisector therom that kinda look like that

directrix · Answer

Do you know about proving triangles similar with the AA Postulate?

anonymous · Answer

no :/

directrix · Answer

What is the name of the section of the text in which these proofs appear? That may give a clue as to what has been studied.

anonymous · Answer

unit 6: ITT and ITT converse proofs

directrix · Answer

What is ITT? I don't know what that acronym means. 
We can do the proof using similar triangles.

anonymous · Answer

isoscels triangle therom

directrix · Answer

I am going to write the steps I would use in a 2-column deductive proof. 

ITT gives that Angle T is congruent to Angle S. I don't see anything beyond that.

anonymous · Answer

ya thats the farthest i could get too

directrix · Answer

Given: RT = RS
Segment PQ is parallel to Segment RS
Prove: PQ = PT

1. Segment PQ is parallel to Segment RS

2. Angle TPQ is congruent to Angle R

3.  Angle TRS is congruent to Angle S

4. Triangle TPQ ~ Triangle TRS

5. TP/RT = PQ/RS

6.  RT = RS

7.  TP/RT = PQ/RT

9. TP = PQ

directrix · Answer

You get to do the reasons. :)

anonymous · Answer

ah your awesome! thank you