Unit 11 Part 1 Review

Front

What is a coterminal angle?

Back

Coterminal angles are angles that share the same terminal side when drawn in standard position. They can be found by adding or subtracting multiples of 360° (or 2π radians).

Front

How do you find a coterminal angle for 125°?

Back

To find a coterminal angle, add 360° to 125°: 125° + 360° = 485°.

Front

Which trigonometric functions are positive in Quadrant 1?

Back

All trigonometric functions (sine, cosine, tangent) are positive in Quadrant 1.

Front

What is the reference angle for an angle in the second quadrant?

Back

Reference angle = 180° - angle.

Front

How do you convert radians to degrees?

Back

Multiply the angle in radians by 180/π.

Front

Convert 7π/6 radians into degrees.

Back

210°.

Front

What is the value of sine in Quadrant 1?

Back

Sine is positive in Quadrant 1.

Front

What is the value of cosine in Quadrant 1?

Back

Cosine is positive in Quadrant 1.

Front

What is the value of tangent in Quadrant 1?

Back

Tangent is positive in Quadrant 1.

Front

If an angle is 240°, what is its reference angle?

Back

Reference angle = 240° - 180° = 60°.