http://www.ck12.org Chapter 1. Basics of Geometry
1.7 Complementary Angles
Here you’ll learn what complementary angles are and how they can help you to solve problems.
What if you knew that two angles together made a right angle? After completing this Concept, you’ll be able to use
what you know about complementary angles to solve problems about these angles.
Watch This
MEDIA
Click image to the left for use the URL below.
URL: http://www.ck12.org/flx/render/embeddedobject/52590CK-12 Foundation: Chapter1ComplementaryAnglesA
MEDIA
Click image to the left for use the URL below.
URL: http://www.ck12.org/flx/render/embeddedobject/1274James Sousa: Complementary Angles
Guidance
Two angles arecomplementarywhen they add up to 90◦. Complementary angles do not have to be congruent to
each other, nor do they have to be next to each other.
Example A
The two angles below are complementary.m^6 GHI=x. What isx?