Unit 5 Quiz Update

Which of the following ratios correctly describes the cosine function?

• opp/adj

• opp/hyp

• adj/hyp

Which of the following ratios correctly describes the sine function?

• opp/adj

• opp/hyp

• adj/hyp

Which of the following ratios correctly describes the tangent function?

• opp/adj

• opp/hyp

• adj/hyp

What is tan 45?

• 1/2

• 1/√2

• 1/√3

• 1

• √3

What is sin 60?

• 1/2

• 1/√2

• 1/√3

• 1

• √3/2

Emma is flying a kite and observes that the string of the kite makes an angle of 74 degrees with the ground. According to this observation, what is tan 74?

• 7/24

• 7/25

• 24/25

• 24/7

• 25/7

• 0.40

• 0.92

• 1.09

• 2.29

When Emma, Abigail, and Aiden are planning a garden and they want to ensure one corner is a right angle for a rectangular plot, the law of cosines reduces to the Pythagorean theorem to help them verify this.

• True

• False

Include the 0 before the decimal if applicable.

Suppose a triangle has two sides of length 33 and 37, and that the angle between these two sides is 120 degrees. What is the length of the third side of the triangle?

Round your answer to two decimal places.

• 43.64

• 70

• 60.65

• 55.70