Question

1. what is the radius of a 3.65 - inch - diameter circle?

Explanation:

Step1: Recall radius - diameter relation

The radius $r$ of a circle is half of its diameter $d$, i.e., $r=\frac{d}{2}$.

Step2: Substitute given diameter

Given $d = 3.65$ inches, so $r=\frac{3.65}{2}$.

Step3: Calculate the result

$r = 1.825$ inches.

Answer:

$1.825$ inches