SOLUTION: I need help for numbers 19 and 22 please somebody? <center><a href="http://tinypic.com?ref=23w389c" target="_blank"><img src="http://i54.tinypic.com/23w389c.jpg" border="0" alt

Algebra ->  Triangles -> SOLUTION: I need help for numbers 19 and 22 please somebody? <center><a href="http://tinypic.com?ref=23w389c" target="_blank"><img src="http://i54.tinypic.com/23w389c.jpg" border="0" alt      Log On


   

Question 425797: I need help for numbers 19 and 22 please somebody?
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Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!
For #19, you can use SAS similarity. You know that both triangles ABE and ADC have angle A in common. Also, AB:AD = AE:AC. By SAS, ABE and ADC are similar.

For #22, since the triangles are parallel, then by parallel postulates, angle RST = angle VUT and angle TRS = angle TVU. Also, angle STR = angle UTV so by AAA similarity, we conclude that RST and VUT are similar.