Question

circle q has a circumference of approximately 50 centimeters. what is the approximate length of the diameter, d? use 3.14 for π. round to the nearest tenth of a centimeter. 4.0 centimeters 8.0 centimeters 15.9 centimeters 31.8 centimeters

Explanation:

Step1: Recall the circumference formula

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

Step2: Solve for the diameter

We know that $C\approx50$ cm and $\pi = 3.14$. Rearranging the formula $C=\pi d$ to solve for $d$, we get $d=\frac{C}{\pi}$. Substituting the given values, $d=\frac{50}{3.14}$.

Step3: Calculate the value of the diameter

$d=\frac{50}{3.14}\approx15.9$ cm (rounded to the nearest tenth).

Answer:

C. 15.9 centimeters