Question

find the measure of angle R to the nearest tenth

Answer 1

The angles add up to 180°
59+39=98
180-98=82°

Answer 2

Answer:

b.

Step-by-step explanation:

I am going to use the sin law to find the angle R. Applying sin law we have that

$\frac{sin(90)}{58} = \frac{sin(R)}{37}$, then

$sin(R) = \frac{sin(90)*37}{58} = \frac{37}{58} = 0.6379$

$R = sin^{-1}(0.6379) = 39.63\textdegree = 39.6\textdegree$.