Respuesta :

anna1645025

Answer:

37°

Step-by-step explanation:

74° is the sum of angle 37° and S°, so we can set up the following equation:

37 + 74 = S

Solving this gets us S = 37°
it’s 37°, because if each full line is 180, so if you subtract 74° from 180°, then it’s 106. the entire triangle is 180° as well. So, you add the 106+37 to get 143°, then 180°-143°= 37°