Simplify to a single power of 5

Given: circle o, cd is diameter, chord ab || cd. arc ab = 74°, find arc ca.

What is the distance between a and b? round your answer to the nearest tenth. a coordinate plane is shown. point a is located at negative 1, 5, and point b is located at 4, 1. a line segment connects the two points.

What is the measure of angle 1? a.28 b.152 c.168 d.64