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Lines that don't intersect but don't exist in the same plane.

Lines that don't intersect and exist in the same plane.

A line that intersects two or more lines, each at a different point.

High School Geometry, invented by a Greek mathematician is based on five principals known as postulates.

Angles that lie in between the two lines.

How many angles will occur when a transversal intersects two lines?

Angles that lie on the outside of the two lines.

Angles that are on opposite sides of the transversal.

Angles on the same side of the transversal. Another name for corresponding angles.

Two angles on opposite sides of transversal and between the two parallel lines. 

Two angles between parallel lines, on one side of the transversal, and their angles added together should equal 180 degrees. 

Two angles on opposite sides of the transversal and they lie outside of the parallel lines. 

Two angles that share they same middle point and their measures are congruent. 

Are theorems also converses?

A.) True 

B.) False

C.) Converses are theorems that prove that two lines are parallel. 

Postulate 4^2 shows that two lines are parallel. 

The alternative is that what's on the inside makes the two lines parallel.

There is an alternation to what the outside has to make two lines parallel. 

There has been consecutive insiders that has proven two lines are parallel. 

TPPLT 

3 lines; 1=2 and 2=3 so 3=1 

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What to theorems prove and what do converses prove? 

Perpendicular

Skew lines

Parallel lines

Transversal

Euclidean Geometry

Interior angles

Eight

Exterior angles

Alternate angles

Consecutive Interior angles

Alternate Interior Angle Theorem

Consecutive Interior Angles Theorem 

Alternate Exterior Angles Theorem

Vertical Angles Theorem

C.) Converses are theorems that prove that two lines are parallel. 

Postulate 16 Corresonding Angles Converse

Alternate Interior Angles Converse

Alternate Exterior Angles Converse 

Consecutive Interior Angles Converse

Transitive Property of Parallel Lines Theorem 

Parallel

Line 

Congruent 

Triangle

Theorems prove the congruence of angles. Converses prove that two lines are parallel.