Cosine of an angle

Questions (3)

Find the cosine for an angle that has a sine of 3√40/20 and is in Quadrant II. Use the Pythagorean identity
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Multiple ChoiceFor △ABC, what is the value of cosC? A right triangle labeled ABC is shown. Side AB has a length of 54, Side BC
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2. asked by nuh uh
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Find the cosine of 300°. Round your answer to the nearest hundredth, if necessary.(1 point) Responses –0.87 –0.87 –0.5
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