sinecosine-and-complementary-angles-geometry-help-moomoomath

# Interactive video lesson plan for: Sine,Cosine, and complementary angles-Geometry Help-MooMooMath

#### Activity overview:

Geometry Teachers Never Spend Time Trying to Find Materials for Your Lessons Again!

http://geometrycoach.com/Geometry-Lesson-Plans/?pa=MOOMOOMATH
Video demonstrates why sin is equal to the cosine of it's complementary angle. Complementary angles are angles that add to 90 degrees.
In addition the video shows why tangent is equal to the inverse of the tangent of it's complement.

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Tagged under: cosine,sine,tangent,geometry, triangles,complement angles,Math,moomoomath

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