Question

find the missing measurements for each circle. the diameter of the circle is 18.00 cm, and point d is the center. find the length of the radius and the approximate circumference of the circle.

Explanation:

Step1: Find the radius

The radius $r$ of a circle is half of the diameter $d$. Given $d = 18.00$ cm, so $r=\frac{d}{2}$.
$r=\frac{18.00}{2}=9.00$ cm

Step2: Find the circumference

The formula for the circumference $C$ of a circle is $C = \pi d$. Using $\pi\approx3.14$ and $d = 18.00$ cm.
$C\approx3.14\times18.00 = 56.52$ cm

Answer:

Radius: 9.00 cm, Circumference: 56.52 cm