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August 23, 2014

August 23, 2014

Posted by **robert** on Thursday, January 31, 2008 at 8:47pm.

a)alternative interior angles are always congruent.

b)corresponding angles are always congruent.

c)adjacent interior angles are always supplementary

d)exterior angles are always congruent

i eliminated a,c, and d. I think c is false because i don't think all adjacent interior angles add up to 180 degrees. Is this right?

- math -
**bobpursley**, Thursday, January 31, 2008 at 8:53pmC is correct. The parallel line has a line going thru it, so the 180 degrees on the line is cut into two pieces.

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