angle 1 + angle 3 = 27 +43 = 70
angle 2 = 180-70 = 110
angle 2 + angle 4 = 180
180 -angle 2 = angle 4 = 180-110 = 70
angle 4 = 70 degrees
hypotenuse goes to the line across from the right angle. adjacent is the bottom one. lastly opposite is the left one.