Recent content by Scorpino

I don't know where to start on this. If I could just get a few initial steps other than the given, that'd be great. Given: ST = UV; W, X, Y and Z are midpoints Prove: WZXY is a rhombus It stinks because this isn't even an isosceles trapazoid, so I can prove that the top and bottom sides...

Hold on... 4) m<FAX + m<CAF + m<BAC = 180 4) Angle addition m<CBA + m<ACB + m<BAC = 180 5) m<FAX + m<CAF = m<CBA + m<ACB 5) substitution (after subtracting m<BAC) How do I isolate FAX and <CBA?

wait what are these two new angles that are created with line AF? EDIT: Nevermind I understand...they're the angle bisectors. Thanks!

There's this one proof that's been bugging me and I can't seem to get it at all. Given: Isosceles triangle ABC (A being the vertex) and line AF as the < bisector of <BAC's exterior angle. Prove: Line AF is parallel to base BC I have no clue where to start on this...I tried making two...

Sweet! Thanks for the help and for checking. :biggrin:

Hmm...thanks for the reply. I managed to get a solution before you posted though, so it didn't include what you were saying. Do you or anyone else mind checking it for me? 1) BC congruent and Parallel to AD (Given) 2) Construct AC (Construction) 3) AC congruent AC (Reflexive prop. of...

[SOLVED] Help with proving a quadrilateral is a parallelogram. Hi this is my first post here and I'm glad to see that this is a well visited board. I'm having trouble with this one proof though that I have to do for geometry due tomorrow. Only a few other people I know have been assigned this...