If XZ is a perpendicular bisector, which of the following is true? (check all that apply)

It’s b and c because perpendicular means cross at 90 degrees and z would be a midpoint

If it is a right triangle, then one of the angles is 90°. We are also given another angle of 15°. The angles in a triangle add up to 180°, therefor to find the missing angle we must add the known angles together and subtract this value from 180:

180 - (90 + 15)
= 180 - 105
= 75°