
Understanding Trigonometric Functions on the Unit Circle

Interactive Video
•
Mathematics
•
9th - 12th Grade
•
Hard
+2
Standards-aligned

Sophia Harris
FREE Resource
Standards-aligned
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the X coordinate of the terminal ray on the unit circle represent?
Cotangent of theta
Cosine of theta
Sine of theta
Tangent of theta
Tags
CCSS.HSF.TF.A.2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
According to the unit circle definition, what is the sine of theta?
The length of the adjacent side
The X coordinate
The length of the hypotenuse
The Y coordinate
Tags
CCSS.HSF.TF.A.2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does the unit circle definition extend the Soh Cah Toa definition?
By using a different hypotenuse
By changing the angle measurement
By considering the unit circle's radius as the hypotenuse
By altering the opposite side
Tags
CCSS.HSF.TF.A.1
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the equivalent of pi over two radians in degrees?
45 degrees
180 degrees
60 degrees
90 degrees
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the terminal side of an angle when pi over two is added?
It becomes parallel to the X-axis
It remains unchanged
It rotates 90 degrees counterclockwise
It rotates 90 degrees clockwise
Tags
CCSS.HSF.TF.C.8
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the relationship between cosine of theta and sine of theta plus pi over two?
Cosine of theta is equal to sine of theta plus pi over two
Cosine of theta is unrelated to sine of theta plus pi over two
Cosine of theta is double sine of theta plus pi over two
Cosine of theta is half sine of theta plus pi over two
Tags
CCSS.HSF.TF.C.8
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the sine of theta plus pi over two in terms of the unit circle?
The length of the hypotenuse
The Y coordinate
The X coordinate
The length of the adjacent side
Tags
CCSS.HSF.TF.A.4
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