Problem:
Find the 6 Trigonometric Ratios given the figure below with ∠R as the reference angle
Solution:
Sine = opposite side / hypotenuse
Cosine = adjacent side / hypotenuse
Tangent = Opposite side / adjacent side
Cosecant = hypotenuse / opposite side
Secant = hypotenuse / adjacent side
Cotangent = adjacent side / opposite side
sin R = 28/35 = 4/5
cos R = 21/35 = 3/5
tan R = 28/21 = 4/3
csc R = 35/28 = 5/4
sec R = 35/21 = 5/3
cot R = 21/28 = 3/4
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