What is the relationship between a central angle and its arc?
Question
What is the relationship between a central angle and its arc?
Solution
The relationship between a central angle and its arc in a circle is that they have the same measure. This means that if you have a central angle of 60 degrees, the arc that it intercepts on the circle is also 60 degrees. This is a fundamental property of circles and is used in many geometric calculations.
Here are the steps to understand this relationship:
- Draw a circle and mark its center.
- Draw a line from the center to the edge of the circle (this is the radius).
- Draw another radius forming an angle with the first line. This is your central angle.
- The portion of the circle's edge that is between the two radii is the intercepted arc.
- The measure of the central angle (in degrees or radians) is the same as the measure of the arc.
This relationship holds true for all circles, regardless of their size.
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