omgosh two column proofs.....

[kat61391]

can someone send me a link to learn how to do these things? i know how to, but just not how to do these kinds:

Given: HM//JK
Conclusion: tri.GHM sim tri.GJK

        G
       /\
      /  \
    H/____\M
    /      \
  J/________\K

 

[Gene]

You might try
http://mathforum.org/dr.math/faq/faq.proof.html
There are many other sites. Do a web search for
two column proof
if that one doesn't do it.

For this problem, col 1 goes
HM//JK
< HGM = < HGM
< GHM = < GJK
< GMH = < GKJ
tri.GHM sim tri.GJK

PS Click twice on the Code button at the top and type your drawing between the boxes. Click on your EDIT box to see what it should look like when you do.