Intro to Trig Review

The value of cos(-240⁰) is

• 0.5

• -0.5

• -0.866

• -0.707

cosθ is positive in

• the 1st and 2nd quadrants
• the 1st and 3rd quadrants
• the 1st and 4th quadrants
• the 2nd and 3rd quadrants

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The terminal side of a 330° angle is in what Quadrant?

• Quadrant I

• Quadrant II

• Quadrant III

• Quadrant IV

What is the degree measure of this angle?

• -230^o

• -590^o

• -490^o

• 590^o

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Positive angles are measured in which direction from standard position?

• Clockwise
• Counterclockwise

You are on a ship at sea. You see a lighthouse in the distance. You know the lighthouse is 175 feet tall. You measure the angle of elevation to the top of the lighthouse at 5^o. How far are you from the bottom of the lighthouse?

Chris leans a 16 foot ladder against a building. If the angle the ladder makes with the ground is 68°, how high up the building does the ladder reach?