Angle Relationships

Angle Relationships

Grade 10th Grade · Math · 55 min· G 501 (use Several Angle Properties To Find An Unknown Angle Measure)

What's Included

Learning Objective

I can use angle relationships to find missing angle measures.

Warm-Up Video

Professor Kat · 7:24

How to Find Missing Angles Using Angle Relationships

Guided Notes

3 key concepts

  • 1

    When two parallel lines are cut by a transversal, there are relationships between the angles formed, such as alternate interior angles and corresponding angles.

  • 2

    Supplementary angles form a straight line and their measures add up to 180 degrees.

  • 3

    Alternate interior angles are congruent, meaning they have the same measure.

Practice Questions

12 questions · Multiple choice & Short answer

Exit Ticket

Quick comprehension check

In the diagram below, lines m and n are parallel. Find the measures of angles x and y. Show your work. [Diagram: Two parallel lines, m and n, are intersected by a transversal. One angle is labeled 70°. Angle x is an alternate interior angle to the 70° angle. Angle y is on the same side of the transversal as the 70° angle and forms a straight line with it.]

Complete Lesson Package

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