Question

c = 2πr (circumference of a circle)

1. find c, when π = 3.14 and r = 9 in

Explanation:

Step1: Substitute the values into the formula

Given \(C = 2\pi r\), \(\pi=3.14\), \(r = 9\) in. Substitute these values: \(C=2\times3.14\times9\).

Step2: Perform the multiplication

First, \(2\times3.14 = 6.28\). Then \(6.28\times9=\frac{628}{100}\times9=\frac{5652}{100}=56.52\).

Answer:

\(56.52\) in