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Further Concepts in Geometry
... Two angles are corresponding angles if they occupy corresponding positions, such as 1 and 5. Two angles are alternate interior angles if they lie between l and m on opposite sides of t, such as 2 and 8. Two angles are alternate exterior angles if they lie outside l and m on opposite sides of t, ...
... Two angles are corresponding angles if they occupy corresponding positions, such as 1 and 5. Two angles are alternate interior angles if they lie between l and m on opposite sides of t, such as 2 and 8. Two angles are alternate exterior angles if they lie outside l and m on opposite sides of t, ...
Geometry Fall 2016 Lesson 032 _Proving lines parallel
... If coplanar lines are not parallel, then they are intersecting. 4. The measure of an exterior angle of a triangle is greater than the measure of either non adjacent interior angle 5.Given 6. Congruent angles are equal in measure 7. Contradiction in steps 4 and 6, therefore the assumption in step 2 i ...
... If coplanar lines are not parallel, then they are intersecting. 4. The measure of an exterior angle of a triangle is greater than the measure of either non adjacent interior angle 5.Given 6. Congruent angles are equal in measure 7. Contradiction in steps 4 and 6, therefore the assumption in step 2 i ...