This is the choices
88
70
110
120

Answer would be 110 because if a figure has 4 angles all it's angle lengths add up to 360°, so since one of the angles is 70° and there is another angle that's identical to it, 70+70= 140, so you have to do 360-140 which gives you 220, and 220/2 = 110°

One unique triangle, because those angles add up to 180, and that's how many degrees there are in one triangle.