Explain! Prize! Thank you!!

12. decide whether each statement is always true, sometimes true, or never true. a. when corresponding points of an original figure and its reflection are connected, the resulting segments are all perpendicular to the line of reflection. b. when a point is reflected over a horizontal line, the y-coordinate of the point stays the same. answer both questions and explain

What’s the answer ? use the picture to see the problem

Measure a and b and find their sum. how are the angles related?