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the radius of a circle is 9 inches. what is the circumference?give the exact answer in simplest form.

the radius of a circle is 9 inches. what is the circumference?give the exact answer-example-1
User Adamclerk
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1 Answer

4 votes

Step 1

The circumference of a circle is given by;


2\pi r

where;


\begin{gathered} r=9in \\ \end{gathered}

Step 2

Find the circumference


\begin{gathered} C=2*\pi*9 \\ C=18\pi in\text{ches} \end{gathered}

Hence, in terms of π the circumference of the circle=18πinches

User Dan Story
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