Question

m3|l4
find the missing measurements for each circle. you can use 3.14 as an approximation for pi.
the circumference of circle b is 55 cm. find the approximate length of the radius and the diameter of the circle.
radius (cm) diameter (cm) circumference (cm)
55

Explanation:

Step1: Recall circumference formula

The circumference $C$ of a circle is $C = \pi d$, where $d$ is diameter.

Step2: Solve for diameter

Rearrange to find $d = \frac{C}{\pi}$. Substitute $C=55$, $\pi=3.14$:
$d = \frac{55}{3.14} \approx 17.52$

Step3: Solve for radius

Radius $r = \frac{d}{2}$. Substitute $d\approx17.52$:
$r = \frac{17.52}{2} = 8.76$

Answer:

Radius: $\approx 8.76$ cm
Diameter: $\approx 17.52$ cm