alleryThe value of sin 30° is:
A0
B√2 / 2
C1/2
D1
Answer & Solution
Correct answer: C. 1/2
1. From the standard 30-60-90 right triangle, sin 30° = opposite/hypotenuse = 1/2.
2. cos 30° = √3/2; tan 30° = 1/√3.
3. Useful to memorize the basic angle values: 0°, 30°, 45°, 60°, 90°.
_Source: syllabus Maths Ch 3 §3.3 Trigonometric Functions of Specific Angles_
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