What is a reference angle?
Learn how to find the six trig functions given a point and using reference angles

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Mathematics
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9th - 10th Grade
•
Hard
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
An angle greater than 180 degrees
An acute positive angle between the X-axis and the terminal side
An angle used to create a triangle
An angle that is always negative
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it important to draw a triangle when working with reference angles?
It ensures the angle is acute
It is necessary for calculating the hypotenuse
It helps in visualizing the problem
It is required for all trigonometric calculations
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you calculate the hypotenuse of a triangle with sides 4 and -3?
By subtracting the smaller side from the larger side
By using the formula 4^2 + (-3)^2 = C^2
By multiplying the sides
By adding the sides
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the sine of an angle in a right triangle?
Adjacent over hypotenuse
Opposite over hypotenuse
Hypotenuse over opposite
Adjacent over opposite
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which trigonometric function is positive in the third quadrant?
Sine
Cosine
Tangent
None of the above
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