1)
Figure 3: 88°
Figure 4: 35°
Figure 1: 24°
Figure 2: 30°
2)
No, there is not a triangle with two right angles. This is because a right angle is equal to 90°, and two right angles = 180°. Triangles ALWAYS equal 180°, and there are ALWAYS three angles in a triangle. Because of this, it is impossible for a triangle to have two right angles.