Rotational and Reference Angles

Find the reference angle for a rotational angle of 225 degrees.

• 360 degrees

• 180 degrees

• 45 degrees

• 90 degrees

What is the reference angle for a rotational angle of 315 degrees?

• 45 degrees

• 90 degrees

• 180 degrees

• 360 degrees

How to find the reference angle for an angle greater than 360 degrees?

• Subtract 360 degrees from the angle until the result is less than 360 degrees, then find the reference angle as usual.

• Add 360 degrees to the angle

• Divide the angle by 360 degrees

• Multiply the angle by 360 degrees

What is the reference angle for a rotational angle of 270 degrees?

• 90 degrees

• 180 degrees

• 45 degrees

• 360 degrees

State the reference angle for the following angle in standard position

What is the reference angle for 125°?

• 235°

• 125°

• 75°

• 55°

What is the reference angle for -310⁰?

• 50⁰

• -50⁰

• 20⁰

• 40⁰

State the reference angle for the following angle in standard position

What is the reference angle for 30 degrees?

• 70 degrees

• 30 degrees

• 150 degrees

• 330 degrees

What is the reference angle?

• 112

• 68

• 158

• 248