How to Find Sine of any Angle?
In a right-angled triangle ABC, where angle A is the angle of interest, and side lengths are denoted as follows:
- Opposite side (opposite to angle A): a
- Adjacent side (next to angle A): b
- Hypotenuse (opposite the right angle): c
The sine of angle A (sin A) is calculated as: sin A = .
Therefore, to find the sine of any angle A in a right-angled triangle, you can use the formula:
sin A =
Sine of any angle
The sine of any angle in a right-angled triangle can be found using the following formula:
Sine of some common angles
For common angles like 30°, 45°, 60°and 90°, exact values of sine are known:
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