Calculate Circle Circumference: Using Given Radius Length of 8

O is the center of the circle in the figure below.

888OOO What is its circumference?

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Step-by-step video solution

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00:00 Find the circumference of the circle
00:03 Radius - the line segment connecting the center of the circle with a point on its circumference
00:06 We will use the formula to calculate the circle's circumference
00:10 We will substitute the value of R and solve for the circumference
00:18 And this is the solution to the problem

Step-by-step written solution

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1

Understand the problem

O is the center of the circle in the figure below.

888OOO What is its circumference?

2

Step-by-step solution

We use the formula:P=2πr P=2\pi r

We replace the data in the formula:P=2×8π P=2\times8\pi

P=16π P=16\pi

3

Final Answer

16π 16\pi cm

Practice Quiz

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\( r=2 \)

Calculate the circumference.

222

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