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May 24, 2015

Homework Help: Geometry

Posted by Geometry on Tuesday, August 18, 2009 at 7:22pm.

h t t p : / / i m g 3 5 . i m a g e s h a c k . u s / i m g 3 5 / 8 0 8 7 / 4 7 2 4 1 4 6 9 . j p g

my book says

if a1 is perpendicular to a2 and b1 is perpeindicular to b2 then angle one equal angle two

WHY????

Also I remeber it was very simple but don't remeber why... if we exten lines a2 and b2 then angle two equals angle 3

WHY???

Please provide me with the reasons...

Thanks

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