Question

calculate the circumference.
formula:
c = 2πr
use 3.14 for π.
c = ? cm
round to the nearest tenth.

Explanation:

Step1: Substitute the values into the formula

Given \( r = 10\) cm and \(\pi=3.14\), the formula for the circumference of a circle is \(C = 2\pi r\). Substituting the values, we get \(C=2\times3.14\times10\).

Step2: Calculate the result

First, calculate \(2\times10 = 20\). Then, multiply by \(3.14\): \(20\times3.14=62.8\).

Answer:

\(62.8\)