<img src="https://d5nxst8fruw4z.cloudfront.net/atrk.gif?account=iA1Pi1a8Dy00ym" style="display:none" height="1" width="1" alt="" />
Skip Navigation
Due to system maintenance, CK-12 will be unavailable on Friday,8/19/2016 from 6:00p.m to 10:00p.m. PT.

Complementary Angles

Two angles that add to 90 degrees.

Atoms Practice
Estimated6 minsto complete
Practice Complementary Angles
Estimated6 minsto complete
Practice Now
Turn In
Complementary Angles
Teacher Contributed

RWA Complementary Angles


Angles in building


  • Complementary angles

Student Exploration

Making a table using complementary angles.


Learn More:

Extension Investigation

  1. Make a presentation of Complementary angles in Buildings - http://www.slideshare.net/keggert/angles-in-buildings http://www.slideshare.net/keggert/angles-in-buildings

Layering (optional)

  1. Exploring Complementary Angles Another interactive lesson from Learn Alberta that teaches students about the properties of complementary angles. Focuses a lot on the importance of 90 degrees. http://www.learnalberta.ca/content/mec/flash/index.html?url=Data/5/A/A5A2.swf
  2. Complementary and Supplementary Angle Pairs Practice - http://www.xpmath.com/forums/arcade.php?do=play&gameid=103

Notes/Highlights Having trouble? Report an issue.

Color Highlighted Text Notes
Please to create your own Highlights / Notes
Show More

Image Attributions

Explore More

Sign in to explore more, including practice questions and solutions for Complementary Angles.
Please wait...
Please wait...