Geometry Proof

rubyred

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Mar 2, 2009
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Given: segment AB Is perpendicular to BCD
Segement DB is Congruent to segment CB
PRove: Angle DAB is Congruent to angle CAB

Please Help I solved it on everything on my attachment but please help me I don't know if I did it right!
Reply ASAP [attachment=0:3nzv1ipn]geo 100.JPG[/attachment:3nzv1ipn]Thanks!
 

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rubyred said:
Given: segment AB Is perpendicular to BCD
Segement DB is Congruent to segment CB
PRove: Angle DAB is Congruent to angle CAB

Please Help I solved it on everything on my attachment but please help me I don't know if I did it right!
Reply ASAP [attachment=0:1oeyup81]geo 100.JPG[/attachment:1oeyup81]Thanks!
I am not sure what you are trying to do.

We have triangles here - how is diagonal coming to play??

General line of proof would be

Between triangles ABD and ABC

DB = BC

AB = AB

mABD = mABC

Thus by SAS ABD and ABC are congruent

Thus

mDAB = mCAB
 
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