What is soh cah toa

SOH CAH TOA is a mnemonic used to remember the definitions of the three basic trigonometric ratios for a right-angled triangle:

• SOH: Sine = Opposite / Hypotenuse $$\sin(\theta) = \frac{\text{opposite}}{\text{hypotenuse}}$$
• CAH: Cosine = Adjacent / Hypotenuse $$\cos(\theta) = \frac{\text{adjacent}}{\text{hypotenuse}}$$
• TOA: Tangent = Opposite / Adjacent $$\tan(\theta) = \frac{\text{opposite}}{\text{adjacent}}$$

These ratios relate the angles of a right triangle to the lengths of its sides.