Answer: 12.56 cm
Step-by-step explanation:
Pi looks like this <em>π or 3.14 or 22/7</em>
A formula for circumference is: <em>C = 2π r</em>
<em>The radius or r listed in the diagram is 2cm. </em>
1) Plug r into the equation...
<em>C = 2π 2</em>
<em>2) Simplify the equation</em>
<em>C = 4π</em>
<em>3) You can insert 4π to be exact in a calculator or do 4 x 3.14 (its still the same thing but you have to round if you are using this π)</em>
However both answers come out to be 12.56