Geometry and Trigonometry practice question

Answer: A. 1/2

In a 30-60-90 triangle the side opposite 30° is half the hypotenuse, so sin 30° = 1/2.

Why the other answers are wrong

B. √3/2

√3/2 is cos 30° (or sin 60°).

C. 1

1 is sin 90°.

D. 2

A sine is never greater than 1.

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