As you see, the angle is a bit closer to 120. A right angle would be a perfect square, which is 90 degrees. So since it is so closer to 90 than the other answers, the answer is 95.
If < 4 is 120°, then we know <3 = 60°, because 120+60=180° then <2 = 35° , and if we add all the angles of the triangle together we find <1 60°+35°= 95° 180°-95°= 85° = <1 180°-85°= <5 = 95°
