Unit Circle
Flashcard
•
Mathematics
•
10th Grade
•
Practice Problem
•
Hard
Standards-aligned
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the Unit Circle?
Back
A circle with a radius of 1 centered at the origin of a coordinate plane, used to define trigonometric functions.
Tags
CCSS.HSF.TF.A.2
2.
FLASHCARD QUESTION
Front
What is the sine of an angle in the Unit Circle?
Back
The y-coordinate of the point on the Unit Circle corresponding to that angle.
Tags
CCSS.HSF.TF.A.2
3.
FLASHCARD QUESTION
Front
What is the cosine of an angle in the Unit Circle?
Back
The x-coordinate of the point on the Unit Circle corresponding to that angle.
Tags
CCSS.HSF.TF.A.2
4.
FLASHCARD QUESTION
Front
What is the tangent of an angle in the Unit Circle?
Back
The ratio of the sine to the cosine of that angle (tan(θ) = sin(θ)/cos(θ)).
Tags
CCSS.HSF.TF.A.2
5.
FLASHCARD QUESTION
Front
What are the coordinates of the point at 0 radians on the Unit Circle?
Back
(1, 0)
Tags
CCSS.HSF.TF.A.2
6.
FLASHCARD QUESTION
Front
What are the coordinates of the point at π/2 radians on the Unit Circle?
Back
(0, 1)
Tags
CCSS.HSF.TF.A.2
7.
FLASHCARD QUESTION
Front
What are the coordinates of the point at π radians on the Unit Circle?
Back
(-1, 0)
Tags
CCSS.HSF.TF.A.2
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