Lesson: Geometry Challenging - 10

Arc Length

[Page 10 of 32]

If you know the radius of a circle and the measure of an angle, you can find the length of the arc that is formed by

Let's find the length of minor arc XZ above.

The sector of Circle Y to which minor arc XZ corresponds is 60°. Since 60° is of the circle (a circle is 360°), the length of minor arc XZ is of the circle's circumference.

The circumference of Circle Y is . The length of minor arc XZ is of 6Π, or Π.

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