Question

unit 1 lesson 1 cumulative practice problem 1. here is a diagram of a straightedge and compass construction. c is the center of one circle, and b is the center of the other. explain why the length of segment bd is the same as the length of segment ab.

Explanation:

In a circle, all radii are equal. Points A, B, and D lie on the circle with center B. Segment AB and segment BD are both radii of the circle centered at B. So, they have the same length.

Answer:

AB and BD are radii of the same - circle (circle with center B), so they are equal in length.