A right triangle has an interior angle measuring 31 degrees which equation could be used to determine t, the measure of the third angle in degrees?
31 + t + 90 = 180
t+31=180
90+t-31=180
2t + 31 = 180
The correct equation is:
31 + t + 90 = 180
31 + t + 90 = 180
t+31=180
90+t-31=180
2t + 31 = 180
31 + t + 90 = 180