Unit Circle
Flashcard
•
Mathematics
•
10th Grade
•
Hard
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the definition of a unit circle?
Back
A unit circle is a circle with a radius of 1, centered at the origin (0,0) in the coordinate plane.
2.
FLASHCARD QUESTION
Front
What are the coordinates of 0° on the unit circle?
Back
(1, 0)
Tags
CCSS.HSF.TF.A.2
3.
FLASHCARD QUESTION
Front
What are the coordinates of 90° on the unit circle?
Back
(0, 1)
Tags
CCSS.HSF.TF.A.2
4.
FLASHCARD QUESTION
Front
What are the coordinates of 180° on the unit circle?
Back
(-1, 0)
Tags
CCSS.HSF.TF.A.2
5.
FLASHCARD QUESTION
Front
What are the coordinates of 270° on the unit circle?
Back
(0, -1)
Tags
CCSS.HSF.TF.A.2
6.
FLASHCARD QUESTION
Front
What is the sine of an angle in the unit circle?
Back
The sine of an angle is the y-coordinate of the point on the unit circle corresponding to that angle.
Tags
CCSS.HSF.TF.A.2
7.
FLASHCARD QUESTION
Front
What is the cosine of an angle in the unit circle?
Back
The cosine of an angle is the x-coordinate of the point on the unit circle corresponding to that angle.
Tags
CCSS.HSF.TF.A.2
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