Sine and Cosine of Complementary angles
- Author:
- Susan Socha
- Topic:
- Angles, Cosine, Sine, Trigonometry
Exploration of Sine and Cosine of complementary angles
(Adapted from work by tohweeteck on GeogebraTube)
What is the complement of a 35 degree angle?
Click on Sin Theta
Click on Complementary angle
Click on Sin (90 - theta)
Click on Cos(90- theta)
Change theta to 25 degrees and look at the values
What conjecture can you make?
Do the same process with the cosine.