Coterminal & Reference Angles

Given the angle theta -120° in standard position. Find the nesasure of its reference angle.

• -60°

• 60°

• -240°

• 240°

Given the angle theta 7Π/6 in standard position. Find the measure of its reference angle.

• Π/2

• Π/3

• Π/4

• Π/6

Given the angle theta 304°32' in standard position. Find the measure of its reference angle.

• 304°32'

• 55°28'

• 56°

• 34°32'

Find the positive coterminal angle of -209°.

• 569°

• 151°

• -151°

• -569°

Find the negative coterminal angle of -209°.

• 569°

• 151°

• -151°

• -569°

Find the negative coterminal angle of 596°41'12"

• -123°19'0"

• -236°41'12"

• -123°18'48"

• -483°18'48"

Find the sec theta if sin theta is -1/4 in the 4th quadrant.

• sec theta = -4

• sec theta = 1.03

• sec theta = 0.97

• sec theta = 0.8

Find the sin theta if csc theta is 1/2 in the 1st quadrant.

The point (-4, 10) is on the terminal side of an angle in standard position. Find the tan theta.

• -2.5

• -0.4

• 2.5

• 0.4

The point (-4, 10) is on the terminal side of an angle in standard position. Find the hypotenuse.