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Geometry and Trigonometry / Right triangles and trigonometry Difficulty: Easy

In the right triangle shown, what is the value of $\sin x °$ ?

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Explanation

Choice C is correct. The sine of an acute angle in a right triangle is the ratio of the length of the side opposite that angle to the length of the hypotenuse. In the right triangle shown, it's given that the length of the side opposite the angle with measure $x °$ is $63$ units and the length of the hypotenuse is $73$ units. Therefore, the value of $\sin x °$ is $StartFraction 63 Over 73 EndFraction$ .

Choice A is incorrect and may result from conceptual or calculation errors.

Choice B is incorrect and may result from conceptual or calculation errors.

Choice D is incorrect and may result from conceptual or calculation errors.