Evaluate the function requested. write your answer as a fraction in lowest terms. find tan a

5 / 12

Reasoning:

1) The definition of tangent ratio is:

tan(x) = opposite-leg / adjacent-leg

2) From the figure

angle = A

opposite-leg = 20

adjacent-leg = 48

3) Using the formula:

cos(A) = 20 / 48 = 5 / 12

5 / 12