Find the reference angle and sketch both angles in standard position

What is the main challenge when finding reference angles for negative angles?

• They are always in the first quadrant.

• Formulas cannot be used for negative angles.

• They are larger than 360 degrees.

• They are always in the third quadrant.

How can you convert a negative angle into a positive one that is less than 2π?

• Subtract multiples of π.

• Add multiples of 2π.

• Multiply by 2π.

• Divide by π.

In which quadrant does the angle -10π/3 lie after finding its coterminal angle?

• First quadrant

• Fourth quadrant

• Second quadrant

• Third quadrant

What is the formula used to find the reference angle in the second quadrant?

• θ' = θ - π

• θ' = 2π - θ

• θ' = θ + π

• θ' = π - θ

What is the reference angle for the angle -10π/3?

• π/6

• π/4

• π/3

• π/2