Question

from unit 3, lesson 3
the circumference of tylers bike tire is 72 inches. what is the diameter of the tire?
learning targets
+ i can choose an approximation for π based on the situation or problem.
+ if i know the radius, diameter, or circumference of a circle, i can find the other two.

Explanation:

Step1: Recall the formula for circumference

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 \(d\)

We know \(C = 72\) inches. Rearranging the formula \(C=\pi d\) for \(d\), we get \(d=\frac{C}{\pi}\). Using \(\pi\approx3.14\), then \(d=\frac{72}{3.14}\approx22.93\) inches.

Answer:

The diameter of the tire is approximately \(22.93\) inches.