Question

1. a is the center of the circle, and the length of cd is 15 centimeters. name a segment that is a radius. segment ab how long is it? 7.5 cm name a segment that is a diameter. segment ab how long is it?

Explanation:

Step1: Recall the relationship between diameter and radius

The diameter \(d\) of a circle is twice the radius \(r\), i.e., \(d = 2r\). Given that \(CD\) is a diameter (\(d=15\) cm).

Step2: Calculate the length of the diameter (if needed for other segments, but here we just use the formula)

Since \(d = 15\) cm (given for \(CD\), and all diameters in a circle have the same length).

Answer:

\(15\) cm