Question

suppose the radius of a circle is 3 units. what is its circumference? use 3.14 for π and enter your answer as a decimal. units show calculator you might need: calculator

Explanation:

Step1: Recall the formula for the circumference of a circle

The formula for the circumference \( C \) of a circle is \( C = 2\pi r \), where \( r \) is the radius of the circle.

Step2: Substitute the given values into the formula

We are given that the radius \( r = 3 \) units and \( \pi = 3.14 \). Substituting these values into the formula, we get:
\( C = 2\times3.14\times3 \)

Step3: Perform the multiplication

First, multiply \( 2 \) and \( 3.14 \): \( 2\times3.14 = 6.28 \)
Then, multiply the result by \( 3 \): \( 6.28\times3 = 18.84 \)

Answer:

18.84