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

b.

Explanation:

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

`(sin(90))/(58) = (sin(R))/(37)`, then

`sin(R) = (sin(90)*37)/(58) = (37)/(58) = 0.6379`

`R = sin^(-1)(0.6379) = 39.63\textdegree = 39.6\textdegree`.