Answer
sin $A$ = $\frac{16}{20}$ or $\frac{4}{5}$
cos $A$ = $\frac{12}{20}$ or $\frac{3}{5}$
tan $A$ = $\frac{16}{12}$ or $\frac{4}{3}$
Work Step by Step
The trigonometric ratios we want to find are given below:
sin $A$ = $\frac{opposite}{hypotenuse}$
cos $A$ = $\frac{adjacent}{hypotenuse}$
tan $A$ = $\frac{opposite}{adjacent}$
Let's plug in values given for each of the sides:
sin $A$ = $\frac{16}{20}$ or $\frac{4}{5}$
cos $A$ = $\frac{12}{20}$ or $\frac{3}{5}$
tan $A$ = $\frac{16}{12}$ or $\frac{4}{3}$
