3 years ago

What is the reference angle for 120°? A. 30° B. 45° C. 60° D. 120° E. 240°

1 answer:

dusya [7]3 years ago

4 0

Answer:

Step-by-step explanation:

120° is an angle in the second quadrant.

The reference angle is the related acute angle in the first quadrant, that is

reference angle = 180° - 120° = 60° → C

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svlad2 [7]

Answer:

Step-by-step explanation:

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3 years ago

nata0808 [166]

9514 1404 393

Answer:

30°, 150°

Step-by-step explanation:

You know the answer to this because you have memorized the short table of trig function values.

sin(θ) = 1/2 for θ = 30° and θ = 150°

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Karolina [17]

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3 years ago