Overview

4th Grade Math

22. NY.4.MD.5

22.1 Angle relationships

Angle Relationships

Explore how angles relate to each other, including complementary, supplementary, and vertical angle pairs, with visual examples and practice problems.

What You'll Learn

Identify acute, right, obtuse, straight, and reflex angles by their degree measures

Calculate a missing complementary angle using the fact that the two angles sum to 90 degrees

Apply the supplementary angle rule to find unknown angles that sum to 180 degrees

Recognize vertical angles formed by intersecting lines and show that they are always equal

Distinguish adjacent angles and linear pairs from other angle pair relationships

Solve algebraic equations involving angle relationships to find unknown angle measures

This Unit Includes

23 Video lessons

Learning resources

NY Curriculum Aligned