# Use sine ratio to calculate angles and side (Sin = $\frac{o}{h}$ ) - Right Triangle Trigonometry

### Use sine ratio to calculate angles and side (Sin = $\frac{o}{h}$ )

One of the trigonometric ratios is sine ratio. It is the opposite side over the hypotenuse of right triangles. In other words, we can find the angles and sides of right-angled triangles by using the sine ratios.