Understanding Radian Measure of Angles
Precalculus · Flashcards · Recall
PRECALCULUS · FLASHCARDS
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QUESTION
What is the sign of the arc length
s
s
s
on the unit circle for a clockwise angle
θ
\theta
θ
?
QUESTION
What is the conversion formula from degrees to radians for an angle
x
∘
x^\circ
x
∘
?
QUESTION
What is the radius of the unit circle used to define radian measure?
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ANSWER
r
=
1
r=1
r
=
1
. Unit circle has radius 1 by definition.
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