Question

1. solve for angle y in degrees and minutes.

19
y
15
51°42
52°8
38°17

Explanation:

Step1: Use cosine function

$\cos(y)=\frac{15}{19}$

Step2: Find the angle in degrees

$y = \cos^{-1}(\frac{15}{19})\approx38.28^{\circ}$

Step3: Convert decimal part to minutes

$0.28\times60 = 16.8\approx17'$

Answer:

$38^{\circ}17'$