Show:
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
Perpendicular Transversal Theorem.
What is a theorem that states in a plane, if a line is perpendicular to one of two parallel lines, then it is also perpendicular to the other.
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

Y=mx+b

What is slope intercept form?

200
Planes that do not intersect.
What are parallel planes?
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

The slope of any line parallel to Y=1/5x+2

What is 1/5?

300
Two segments parallel to plane BCGF.
What are lines AD and DH?
300
Value of x.
What is x=46?
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 lines are perpendicular, then their slopes are this.

What is opposite reciprocal?

400
Two pairs of parallel lines.
What are plane ABCD-plane EFGH, plane DCG-plane ABF?
400
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?
400
What is the value of y?
What is y=60?
400
A form of writing a proof that has arrows that show the logical connections between the statements, reasons are written below the statements.
What is a flow proof?
400
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?
500
1.Which segments are parallel to line AB? 2.Which segments are skew to line CD?
What are 1. Lines EF, DC, and HG. 2. Lines BF, AE, EH, and FG.
500
55+x+105=180
What is x=20?
500
Theorem that states, if a transversal intersects two parallel lines, then alternate exterior angles are congruent.
What is the Alternate Exterior Angles Theorem?
500
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?
500

A line parallel to y=2x+7 and passes through the point (-2,4)

What is y=2x+8?