Question

the blue segment below is a diameter of \\(\odot o\\). what is the length of the radius of the circle? 10.2 \\(\bigcirc\\) a. 5.1 units \\(\bigcirc\\) b. 20.4 units \\(\bigcirc\\) c. 15.3 units \\(\bigcirc\\) d. 10.2 units

Explanation:

Step1: Recall radius-diameter relation

The radius is half the diameter, so $r = \frac{d}{2}$

Step2: Substitute diameter value

Substitute $d=10.2$ into the formula:
$r = \frac{10.2}{2}$

Step3: Calculate the radius

$r = 5.1$

Answer:

A. 5.1 units