Lines and
Angles
Parallel and Perpendicular Lines
Properties of Parallel Lines
Proving Lines Parallel
Slopes of Parallel and Perpendicular Lines
100
Coplanar lines that do not intersect.
What are parallel lines?
100

Definition of perpendicular lines

Two lines that intersect and form right angles.

100

A postulate that states, if a transversal intersects two parallel lines, then corresponding angles are congruent.

What is the Corresponding Angles Postulate?

100

Postulate that states, if two lines and a transversal form corresponding angles that are congruent, then the lines are parallel.

What is the Converse of the Corresponding Angles Postulate?

100

This linear equation form?  Y=mx+b

What is slope Intercept Form?

200

Two angles who sum is 90 degrees.

What are complimentary angles?

200
Acute, Obtuse, or Right angle.
1. What is an obtuse angle? 2. What is an acute angle?
200

Theorem that states, If a transversal intersects two parallel lines, then alternate interior angles are congruent.

What is the Alternate Interior Angles Theorem?

200

Theorem that states, if two lines and a transversal form alternate interior angles that are congruent, then the two lines are parallel.

What is the Converse of the Alternate Interior Angles Theorem?

200

Given Y=1/5x+2. What is 1/5 in this equation?

What is slope?

300

The sum of the measures of all the angles of a triangle is 180.

Triangle Angle-Sum Theorem

300

Parallel Lines have?

What is same slope and different Y-intercepts

300
Theorem that states, if a transversal intersects two parallel lines, then same-side interior angles are supplementary.
What is the Same-Side Interior Angles Theorem?
300
Theorem that states, if two lines and a transversal form same-side interior angles that are supplementary, then the two lines are parallel.
What is the Converse of the Same-Side Interior Angles Theorem?
300

If two non vertical lines are perpendicular, then the product of their slope is...

What is -1?

400

1.What are a pair of angles whose sum is 180 degrees?

What are supplementary angles.

400

Solve for x: 55+x+105=180

What is x=20?

400
Theorem that states, if a transversal intersects two parallel lines, then alternate exterior angles are congruent.
What is the Alternate Exterior Angles Theorem?
400
Theorem that states, if two lines and a transversal form alternate exterior angles that are congruent, then the two lines are parallel.
What is the Converse of the Alternate Exterior Angles Theorem?
400

Numbers with products -1 are...

What are opposite reciprocals (Negative Reciprocals)?

500

The measure of each exterior angle of a triangle equals the sum of the measures of its two remote interior angles.

Triangle Exterior Angle Theorem

500

Which of the following is not a reason for proving two lines parallel: A-The lines are both perpendicular to the same line. B-Corresponding angles are congruent. C-Vertical angles are congruent. D-The lines are both parallel to the same line.

What is C?

500

Given parallel lines cut by a transversal and one same side interior angle measures 120, what is the measure of the other same side interior angle?

What is the measure of the other same side interior angle 60?

500

A form of writing a proof that has statements and reasons in the form of a chart.

What is a 2 column proof?

500

True or False, line 1 and line 2 are perpendicular. Line 1: slope is -3/2 Line 2: slope is 2/3

What is true?

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