Finding coterminal angles using graphs

The video tutorial explains coterminal angles, which share the same initial and terminal sides. It covers how to find coterminal angles in both degrees and radians, emphasizing the importance of understanding radians. The tutorial includes mathematical calculations involving fractions and provides a graphical representation of angles. It also explores advanced concepts, such as angles greater than 360 degrees, and demonstrates how to find additional coterminal angles by adding or subtracting full rotations.

What is a coterminal angle?

• An angle that is always 180 degrees

• An angle that is always 360 degrees

• An angle that shares the same initial and terminal sides

• An angle that is always 90 degrees

How do you find a coterminal angle in degrees?

• Subtract 360 degrees

• Subtract 90 degrees

• Add 45 degrees

• Add 180 degrees

What is the equivalent of subtracting 360 degrees in radians?

• Subtracting 3π

• Subtracting 2π

• Subtracting π

• Subtracting π/2

When working with fractions in radians, what is a necessary step?

• Adding 1 to the numerator

• Ensuring common denominators

• Multiplying by the same fraction

• Ignoring the denominator

What is the coterminal angle of 30 degrees when you add 360 degrees?

• 60 degrees

• 720 degrees

• 390 degrees

• 330 degrees

How can you find a negative coterminal angle?

• Add 180 degrees

• Subtract 90 degrees

• Subtract 45 degrees

• Add 360 degrees in the negative direction

What is the result of adding -360 to -330?

• -330

• -360

• -690

• -720