What is the radius of the unit circle?

Understanding Ordered Pairs in a Unit Circle

Interactive Video
•
Mathematics
•
8th - 10th Grade
•
Hard

Ethan Morris
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2
1
0.5
3
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a 30-60-90 triangle, what is the length of the short leg if the hypotenuse is 1?
1
0.5
√2/2
√3/2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the ordered pair for a 30-degree angle in the unit circle?
(√3/2, 0.5)
(0.5, √3/2)
(1, 0)
(√2/2, √2/2)
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you calculate the long leg of a 30-60-90 triangle?
Short leg times √3
Hypotenuse times √3
Hypotenuse times √2
Short leg times √2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the ordered pair for a 60-degree angle in the unit circle?
(0, 1)
(1, 0)
(0.5, √3/2)
(√3/2, 0.5)
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How are the coordinates in the second quadrant related to those in the first quadrant?
They are mirror images over the x-axis
They are mirror images over the y-axis
They are negatives of each other
They are the same
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the coordinates when mirrored over the x-axis?
Only x-coordinate changes sign
Only y-coordinate changes sign
Both coordinates become negative
Both coordinates become positive
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