Which Equation Can Be Used to Determine the Reference Angle, R, if ?

7pi/12 > pi/2, This means it is in 2nd quadrant.
For angles in 2nd quadrant, subtract from pi to get reference angle.

pi - 7pi/12 = 5pi/12

then letter of the alphabet B it is 😀

Have a nice Mean solar day!!

Stride-by-stride explanation:

Pace-past-step explanation:

To notice the reference angle of a given bending, first of all, the quadrant of the given angle is determined.

So for 7pi/12

The quadrant is 2nd.

For the bending belonging to second quadrant the equation for reference bending volition be:

r=180 - theeta

r = 180° -

Step-by-step caption:

We have to find the reference angle (r) of the given angle θ =

First nosotros will discover the quadrant in which this angle lies.

Since θ = =

105° bending lies in second quadrant. Therefore, reference angle volition exist

r = 180° - θ

where θ =

Now we can say that equation for reference angle r will be r = 180°-

r = pi minus theta

Pace-past-footstep explanation:

r= pi- theta on edg,.

Step-by-pace caption:

Step-by-step explanation:

Alright, lets get started.

Delight refer the diagram I have attached.

If we draw the given angle , the terminal side will exist in 2nd quadrant.

So the reference angle will be the angle between x centrality and the concluding side of given bending.

For this, we have to decrease it from

So the reference angle will exist :

making common denominator

reference angle =

reference angle = :   Answer

Hope it will help 🙂

The answer is "r=pi-theta".

The reference angle refers to the angle that the given border or bending makes with the ten-pin.  Regardless where the bending closes or ends, it does mot matter where the terminal side of the angle is located, the reference angle measures the nearest distance of that concluding side to the x-axis.

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