How to determine one positive and one negative coterminal angle

The video tutorial explains the concept of initial and terminal sides of angles, focusing on how to determine coterminal angles. It covers the calculation of both positive and negative coterminal angles by adding or subtracting 360 degrees. The tutorial provides examples to illustrate the process and emphasizes understanding the direction of angle measurement.

What does it mean for an angle to have a negative direction?

• It moves clockwise.

• It moves counterclockwise.

• It moves in a straight line.

• It stays stationary.

How do you find a negative coterminal angle?

• By subtracting 360 degrees.

• By adding 180 degrees.

• By subtracting 180 degrees.

• By adding 360 degrees.

What is the result of subtracting 360 degrees from -210 degrees?

• -150 degrees

• 570 degrees

• 150 degrees

• -570 degrees

Why is it necessary to add 360 degrees to find a positive coterminal angle?

• To find the smallest angle.

• To simplify calculations.

• To convert a negative angle to a positive one.

• To make the angle larger.

What is the positive coterminal angle of -210 degrees?

• 150 degrees

• 570 degrees

• 210 degrees

• 360 degrees