24. Should be 65 is the other angle is 90 and the outside angle is 155 degrees.
25.
Since 140 is out of the triangle, we can use that to find all the angles. 180 - 140 is 40. Then 180 - 40 is 140. Divide the angle by 2 and X is equal is 70 degrees.
26.
100 + 25 is 125. Subtract that from 180 and the other angle inside the triangle is 55. Then subtract 180 - 55. The angle of X is 125
