The plastic lid of a cylindrical container is a circle. The lid has a radius of 9 centimeters. What is the circumference of the lid?
Added by Lully A.
Step 1
In this case, the radius of the lid is 9 centimeters. So, we substitute 9 for r in the formula: Circumference = 2π * 9 = 18π centimeters. Show more…
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