Question

Select all the correct answers.

If the measure of angle is 0 is 7pi/4, which statements are true?
The measure of the reference angle is 45°.
The measure of the reference angle is 30°.
tan(0) = -1
The measure of the reference angle is 60°.
cos(0) = -√2/2
sin(0) = -√2/2

Answer 1

The statement(s) that are true is that the measure of the reference angle is 45°.

What is the conversion of radians to degrees?

The conversion of an angle in radian to a degree can be determined by the multiplication of the given angle in radian by 180/π.

From the given information:

$\mathbf{\theta = \dfrac{7 \pi}{4}}$

To degrees, we have:

$\mathbf{\theta = \dfrac{7 \pi}{4} \times \dfrac{180}{\pi}}$

$\mathbf{\theta =315^0}$

A reference angle is an angle that measures the remaining distance (called the terminal distance) to the x-axis.

315° is in the 4th quadrant, i.e.

= 360° - 315°

= 45°

Therefore, the statement(s) that is true is:

• The measure of the reference angle is 45°.

Learn more about the conversion of radians to degrees here:

https://brainly.com/question/12939121

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Answer 2

Answer:

sin(0)=-√2/2

tan(0) = -1

The measure of the reference angle is 45°

Step-by-step explanation:

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