Virtual Nerd
Virtual Nerd: How Do You Find a Value for X That Makes Two Lines Parallel?
This tutorial shows you how to find x so two lines are parallel. [2:47]
Khan Academy
Khan Academy: Geometry: Deductive Reasoning
This video explains what is deductive reasoning.
Khan Academy
Khan Academy: Angles Formed Between Transversals and Parallel Lines
This video explains the relationship between the measures of angles formed when parallel lines are cut by a transversal.
Khan Academy
Khan Academy: Angles (Part 3)
Identifies and defines the types of angles formed by parallel lines cut by a transversal and the relationship of their measures.
Khan Academy
Khan Academy: Geometry: Angles of Parallel Lines 2
Explains how to determine the measures of all the angles formed when parallel lines are cut by a transversal based on the measure of one angle. Explains how to use corresponding congruent angles to determine if lines cut by a transversal...
Khan Academy
Khan Academy: Geometry: Angles Formed Between Transversals and Parallel Lines
Explains the relationship between the measures of angles formed when parallel lines are cut by a transversal based on relationships of corresponding, vertical, and supplementary angles. [7:53]
Khan Academy
Khan Academy: Geometry: Angles Formed by Parallel Lines and Transversals
Identifies which angles are congruent when parallel lines are cut by a transversal. [7:07]
Khan Academy
Khan Academy: Geometry: Angles (Part 3)
Identifies and defines the types of angles formed by parallel lines cut by a transversal and the relationship of their measures. Discusses Triangle Sum Theorem. [9:48]
Art of Problem Solving
Art of Problem Solving: Angles and Parallel Lines
Video tutorial discusses the relationships among angles formed when a transversal intersects parallel lines. [5:54]
Study Pug
Study Pug: Perpendicular Line Proofs
Video lesson explains angles, lines, and transversals. [9:33]
Sophia Learning
Sophia: Corresponding Angles Converse: Lesson 6
This lesson [5:22] will demonstrate how to prove lines parallel with the converse of the corresponding angles postulate. It is 6 of 6 in the series titled "Corresponding Angles Converse."
Sophia Learning
Sophia: Corresponding Angles Converse: Lesson 1
This lesson will demonstrate how to prove lines parallel with the converse of the corresponding angles postulate. It is 1 of 6 in the series titled "Corresponding Angles Converse." [2:37]
Sophia Learning
Sophia: Corresponding Angles
From this lesson, you'll see that that when a transversal crosses two parallel lines, corresponding angles are congruent.
Sophia Learning
Sophia: Corresponding Angles: Lesson 2
From this lesson, you'll see that that when a transversal crosses two parallel lines, corresponding angles are congruent. It is 2 of 8 in the series titled "Corresponding Angles." [2:09]
Sophia Learning
Sophia: Corresponding Angles: Lesson 3
From this lesson, you'll see that that when a transversal crosses two parallel lines, corresponding angles are congruent. It is 3 of 8 in the series titled "Corresponding Angles." [2:09]
Sophia Learning
Sophia: Corresponding Angles: Lesson 6
From this lesson, you'll see that that when a transversal crosses two parallel lines, corresponding angles are congruent. It is 6 of 8 in the series titled "Corresponding Angles." [1:21]
Sophia Learning
Sophia: Corresponding Angles: Lesson 8
From this lesson, you'll see that that when a transversal crosses two parallel lines, corresponding angles are congruent. It is 8 of 8 in the series titled "Corresponding Angles." [2:09]
Sophia Learning
Sophia: Corresponding Angles Converse: Lesson 3
This lesson [3:41] will demonstrate how to prove lines parallel with the converse of the corresponding angles postulate. It is 3 of 6 in the series titled "Corresponding Angles Converse."
Sophia Learning
Sophia: Corresponding Angles Converse: Lesson 4
This lesson [3:57] will demonstrate how to prove lines parallel with the converse of the corresponding angles postulate. It is 4 of 6 in the series titled "Corresponding Angles Converse."
Sophia Learning
Sophia: Corresponding Angles Converse: Lesson 5
This lesson [3:29] will demonstrate how to prove lines parallel with the converse of the corresponding angles postulate. It is 5 of 6 in the series titled "Corresponding Angles Converse."
Sophia Learning
Sophia: Corresponding Angles: Lesson 4
From this lesson, you'll see that that when a transversal crosses two parallel lines, corresponding angles are congruent. It is 4 of 8 in the series titled "Corresponding Angles." [3:18]
Sophia Learning
Sophia: Consecutive Exterior Angles Converse
This video lesson demonstrates how to determine if two lines are parallel by using the converse of the consecutive-exterior angles theorem. Students can check their understanding with an assessment.
Sophia Learning
Sophia: Consecutive Exterior Angles Converse
This video lesson demonstrates how to determine if two lines are parallel by using the converse of the consecutive-exterior angles theorem. Students can check their understanding with an assessment.