Triangles and the Trigonometric Functions

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Right Triangle Definitions

Right Triangle

cosine

sine

tangent

secant

cosecant

cotangent

 

30-60-90 Triangle
30-60-90 Triangle

cos 30

sin 30

tan 30

cos 60

sin 60

tan 60

 

Isosceles Right Triangle
30-60-90 Triangle

cos 60

sin 60

tan 60

 

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