Respuesta :

jcherry99

Answer:

Step-by-step explanation:

Sin(42) = n/21

n = 21 * sin(42)

n = 21 *  0.6691

n = 14.052

Cos(42) = m / 21

21 * cos(42) = m

m = 21 * 0.7431

m = 15,61

Theta + 42 = 90

Theta = 90 - 42

Theta = 48