Question

1. this circle has a circumference of 40 centimeters. what is the length of its diameter? a. 40π centimeters b. (\frac{20}{pi}) centimeters c. (\frac{40}{pi}) centimeters d. 20 centimeters

Explanation:

Step1: Recall the formula for circumference

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

Step2: Solve for \(d\)

Given \(C = 40\) cm. Substitute into the formula: \(40=\pi d\). Then \(d=\frac{40}{\pi}\) (divide both sides by \(\pi\)).

Answer:

C. \(\frac{40}{\pi}\) centimeters