Lesson 2: Complementary and Supplementary Angles
Words to Know
Complementary Angles: the sum of two angles is equal to 90 degrees
Supplementary Angles: the sum of two angles is equal to 180 degrees
Complementary Angles: the sum of two angles is equal to 90 degrees
Supplementary Angles: the sum of two angles is equal to 180 degrees
Examples:
1. Identify Angles
Video
2. Find a Missing Angle Measure
Video
1. Identify Angles
Video
2. Find a Missing Angle Measure
Video
Tips
Problem of the DAY
Answers must be submitted by 9am the following school day!
1. If angles 2 and 3 are supplementary, and <2 = 98 degrees, what is the m<3?
2. If the m<1 is 85 and the m<2 is 90, are these angles complementary, supplementary, or neither?
1. If angles 2 and 3 are supplementary, and <2 = 98 degrees, what is the m<3?
2. If the m<1 is 85 and the m<2 is 90, are these angles complementary, supplementary, or neither?