Basic Trig

In right triangle ∆QRS, where m∠R = 90°, m∠Q = 75°, and QS = 24, find the length of QR.

(Image not to scale).

• Approximately 23.18

• Approximately 6.21

• Approximately 92.73

• Approximately 20.11

• 225
• 315

• 135

• 144

• 60 degrees
• 20 degrees
• 30 degrees
• 45 degrees

Convert 125° to radians.

Convert 90° to radians.

What is the ratio of sin C?

What is the ratio of cos C?

What is the ratio of tan C?

In right triangle ∆QRS, QR = 32, and SR = 47. Find m∠S rounded to the nearest tenth.

• m∠S ≈ 32.5 degrees
• m∠S ≈ 34.2 degrees

• m∠S ≈ 47.2 degrees
• m∠S ≈ 56.3 degrees

What is the measure of the angle 0 < θ < 360 coterminal to 804°?

• 84°

• 184°

• 304°

• 144°