
Triangle Proof
Hello,
I know WHY a triangle is similar to another, I just have trouble presenting it on tests as a formal solution.
Can someone provide a full, formal solution when proving that each of the following triangles are similar? (disregard the crappy scale of my drawings)
1.
http://img345.imageshack.us/img345/6892/trianglenk7.jpg
2. Along with proving they're similar, find the value of the variable.
http://img296.imageshack.us/img296/6...iangle2or0.jpg

For the first triangle.
<BAE=<EDC > Postulate #5
And,
<AEB=<CED > Vertex Angles
Thus,
Triangle ABE ~ Triangle CED
Because they have two equal angles

Re
If it helps try this program, the program is desingned for triangle testing.
I made the program, so if you need help try my program and see if it's the solution to your problems
http://www.mathhelpforum.com/mathhe...nprogram.html