Complementary Angle Puzzles

Complementary angles add up to 90 degrees. Can you figure out the missing angle measurement in these complementary pairs? Click on a button with an angle name to highlight that angle.

Angles

1. Angles and Fraction Circles
2. Angles and Twelfths
3. Angles and Clock
4. Fraction Circles and Clock
5. Angles and Protractor
6. Supplementary Angles Add Up to 180
7. Half Circle Protractor
8. Measure Supplementary Angles
9. How to Name Angles
10. Supplementary Angle Puzzles
11. Connect the Dots: Angles
12. Complementary Angle Puzzles
13. Angle Bisector Puzzles
14. Vertical Angle Puzzles
15. Triangle Tiling
16. Guess the Angle

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Leone Learning Systems, Inc. (LLS) is a North Shore company that provides online courses for kids anywhere and local teaching and tutoring services for students in Chicago and the Northern Suburbs of Chicagoland. LLS also provides a free geometry software package for children age 6 and up, and free resources for teachers and parents. This site includes information about classes taught, availability for tutoring, learning activities for kids, lesson plans, and an ongoing software and curriculum research and development effort.

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