## Trigonometry (10th Edition)

sin A = $\frac{12}{13}$ csc A = $\frac{13}{12}$ cos A = $\frac{5}{13}$ sec A = $\frac{13}{5}$ tan A = $\frac{5}{12}$ cot A = $\frac{12}{5}$
sin A = $\frac{perpendicular}{hypotenuse}$ csc A = $\frac{hypotenuse}{perpendicular}$ cos A = $\frac{base}{hypotenuse}$ sec A = $\frac{hypotenuse}{base}$ tan A = $\frac{perpendicular}{base}$ cot A = $\frac{base}{perpendicular}$