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A right triangle's hypotenuse is 20cm long. What is the length of the side opposite a 60 degree angle? Give your answer to the nearest tenth of a centimeter.
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A right triangle's hypotenuse is 20cm long. What is the length of the side opposite a 60 degree angle? Give your answer to the nearest tenth of a centimeter.

User AndrWeisR
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1 Answer

4 votes
Since you are dealing with hypotenuse and opposites, you need to use sine.

sin = (opposite)/(hypotenuse)

sin(60) = (opposite)/20
sin(60) * 20 = 17.3

The length of the opposite side is approximately 17.3 centimeters
User Maritess
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