Question

circumference and pi
calculate the circumference.
formula:
c = 2πr
use 3.14 for π.
use a
c = ? cm
round to the
earest tenth.

Explanation:

Step1: Substitute the values into the formula

Given \( r = 10\) cm and \(\pi=3.14\), substitute into \(C = 2\pi r\).
\(C=2\times3.14\times10\)

Step2: Calculate the result

First, \(2\times10 = 20\), then \(20\times3.14=62.8\)

Answer:

\(62.8\)