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Transcript 
Geometry
Draw over two lines on your paper a couple inches
apart.
 Draw a transversal through your two parallel lines.
 Find the measures of the eight angles created.

 If two parallel lines are cut by a
transversal, then each pair of
corresponding angles is
congruent.

3.1 Alternate Interior Angles- If two parallel
lines are cut by a transversal, then the
alternate interior angles are congruent.

3.2 Consecutive Interior Angles- If two
parallel lines are cut by a transversal, then
each pair of consecutive interior angles is
supplementary.
 3.3 Alternate
Exterior Angles- If
two parallel lines are cut by a
transversal, then each pair of
alternate exterior angles is
congruent.

Find the measure of the missing angles.
118°

Find x and y and then find the measures of the
angles.
x+15
3y+20
2x-10
Page 181: 1-30 all
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