The three red lines are all the same length. In this episode I cover some of the more useful basics of trigonometry - sine cosine tangent with more in depth coverage of sine. Sine cosine of complementary angles.
The relationships hold for all complementary angle pairs.
Math High school geometry Right triangles trigonometry Sine cosine of complementary angles. We can describe the trigonometric ratios from a single right triangle in terms of either acute angle. In this episode I cover some of the more useful basics of trigonometry - sine cosine tangent with more in depth coverage of sine. Angle in radians Angle in degrees x PI 180.