# For a right triangle ABC, how do you find the sine, cosine and tangent of angle A?

$\sin A = \text{oppo. side " / "hypotenuse} = \frac{a}{h}$
$\cos A = \text{adj. side " / "hypotenuse} = \frac{b}{h}$
$\tan A = \text{oppo. side " / "adj. side} = \frac{a}{b}$