"The circumference of a circle is 12 inches. What is the radius?"...
We can use the formula to find the circumference of circle to solve this: [tex]2 \pi r[/tex] Input the information we know: [tex]2 \pi r=12[/tex] Solve for r, using the properties of equality:
Simplify. [tex]6.28r=12[/tex] Divide both sides by 6.28 [tex](6.28r)/6.28=(12)/6.28[/tex] Simplify. [tex]r=1.91[/tex]