JeylinU221153 JeylinU221153
  • 03-11-2022
  • Mathematics
contestada

The plastic lid of a cylindrical container is a circle. The lid has a radius of 9centimeters. What is the circumference of the lid?

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WrynZ59707 WrynZ59707
  • 03-11-2022

We are asked to determine the circumference of a 9 cm radius circle. To do that we will use the following formula:

[tex]S=2\pi r[/tex]

Where:

[tex]\begin{gathered} S=\text{ circumference} \\ r=\text{ radius} \end{gathered}[/tex]

Now, we substitute the value of the radius:

[tex]S=2\pi(9cm)[/tex]

Solving the operations:

[tex]S=18\pi=56.55cm[/tex]

Therefore, the circumference is 56.55 cm.

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