PreCalc II 4.1 Angles and Radian Measure

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Last updated 11:21 PM on 9/29/26
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5 Terms

1
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<p>Formula to find one Radian</p>

Formula to find one Radian

θ=S/R

2
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<p>360 degree arc in radian for a circle</p>

360 degree arc in radian for a circle

θ=2π

3
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Convert degree to radian

π/180°

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Convert radian to degree

180°/π

5
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Arc length formula

S=θr

Note: θ must be in radian