The sum of the angle measures in a triangle is 180 degrees. two angles of a triangle measure 30 degrees and 70 degrees. what is the measure of the third angle

third angle = 80°

to find the third angle, add the 2 given angles and subtract from 180

third angle = 180° - (30 + 70 )° = 180 - 100 = 80°

i think the correct option is the second option.