Supplementary and Complementary Angles

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Objective

I can solve for unknown angles using the properties of supplementary and complementary angles.

Part 1 of 3

Warm-up video

Unknown Channel · 5:00

We don't generate video — this one is by Unknown Channel on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.

Part 2 of 3

Practice

7 questions

1

Define complementary and supplementary angles and state the degree measure each type of angle pair sums to.

2

If two angles are complementary and one angle measures 63°, find the measure of the other angle.

Part 3 of 3

Exit ticket

Quick comprehension check

Angle A and angle B are complementary angles. If angle A measures 57°, what is the measure of angle B? Angle X and angle Y are supplementary angles. If angle X measures 32°, what is the measure of angle Y? Angle P and angle Q are complementary angles. If angle P measures 19°, what is the measure of angle Q?

Sample answer included in the free materials

Get the materials

Teacher guide, student handout, and slides — free, in Google Docs format

  • Teacher Guide

    Complete lesson plan with answer keys and alternate activities

  • Student Handout

    Printable worksheet

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