Trigonometric Fcns: m(B)=90, AB=r, BC=m, CA=t; find cos(C)

[Nelson01]

In right triangle ABC, m

B = 90° and the lengths of sides AB, BC and CA are r, m and t, respectively. Cos C is equal to which ratio?

 

[winsome]

Re: Trigonometric Functions

In right triangle ABC,
opposite = AB = r
hypotenuse = AC = t
adjacent = BC = m
To find the ratio of Cos C, use the trigonometric function
cos C = adjacent/hypotenuse = m/t
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