What is the range of angles considered acute in the quadrant diagram?

Unit Circle and Trigonometric Concepts

Interactive Video
•
Mathematics
•
9th - 10th Grade
•
Hard

Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Between π and 2π
Between 0 and π/2
Between π/2 and π
Between 0 and π
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why are right angles problematic in right-angled triangles?
They do not have a hypotenuse
They are too large to fit
They cannot be part of a right-angled triangle
They cannot be adjacent to any side
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the radius of the unit circle?
0.5 units
π units
1 unit
2 units
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you calculate the x-coordinate on the unit circle using trigonometry?
x = cot(θ)
x = tan(θ)
x = cos(θ)
x = sin(θ)
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the coordinates of the point on the unit circle at angle π?
(1, 0)
(-1, 0)
(0, 1)
(0, -1)
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
At which angle on the unit circle is the sine value equal to 1?
0
π/2
π
3π/2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the cosine of 3π/2 on the unit circle?
1
0
-1
-0.5
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