Question

the radius of a second circle is 7.2 inches. point b is the center of the circle. what is the length of the diameter? label your answer on the circle.

Explanation:

Step1: Recall diameter - radius relation

The diameter $d$ of a circle is twice its radius $r$, i.e., $d = 2r$.

Step2: Substitute given radius value

Given $r=7.2$ inches, then $d = 2\times7.2$.
$d = 14.4$ inches.

Answer:

14.4 inches