Radians & the Unit Circle REVIEW
Flashcard
•
Mathematics
•
10th - 12th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
Back
2.
FLASHCARD QUESTION
Front
What is a reference angle?
Back
A reference angle is the acute angle formed by the terminal side of an angle and the x-axis.
3.
FLASHCARD QUESTION
Front
Find the reference angle for -15°.
Back
15°
4.
FLASHCARD QUESTION
Front
What is the measure of the angle -940 degrees?
Back
-940 degrees is coterminal with 140 degrees.
5.
FLASHCARD QUESTION
Front
Back
6.
FLASHCARD QUESTION
Front
What are the negative and positive coterminal angles of -225°?
Back
135°, -585°.
7.
FLASHCARD QUESTION
Front
What is the unit circle?
Back
The unit circle is a circle with a radius of 1 centered at the origin of the coordinate plane.
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