In a right triangle, sin(30°) equals:
A1/2
B√3/2
C1
D2
Answer & Solution
Correct answer: A. 1/2
In a 30-60-90 special right triangle, sin(30°) = 1/2 (opposite over hypotenuse). This is a memorised value: sin 30° = 1/2, cos 30° = √3/2, tan 30° = 1/√3.
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