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What is radian measure in geometry? what do you use it for?​

User Zrin
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Answer:

The radian is a unit of measure for angles used mainly in trigonometry. It is used instead of degrees.

Explanation:

User Bejmax
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Answer:

The radian is a unit of measure for angles used mainly in trigonometry. It is used instead of degrees. ... As seen in the figure above, a radian is defined by an arc of a circle. The length of the arc is equal to the radius of the circle. Because of this the radian is a fixed size no matter what the size of the circle is.

Explanation:

User Jyotirmoy Pan
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