“SOH CAH TOA,” a mnemonic for remembering trigonometry terms, went viral online. The Riverside Unified School District declined to identify the teacher to local news sites, but confirmed that ...

SohCahToa is mostly used in trigonometry ... right triangle. Soh stands for Sine equals Opposite over Hypotenuse, Cah stands for Cosine equals Adjacent over Hypotenuse, and Toa stands for Tangent ...

We know the hypotenuse and are trying to find the value of \(y\), which is the adjacent. From SOH CAH TOA, we see that we need to use the cosine ration. \(\cos (x^\circ ) = \frac{{adjacent}}{{ ...

As the numbers are known on the opposite and the hypotenuse, then we look for the ratio which uses both these sides (SOH CAH TOA). That ratio is the sine ratio. \(\sin (x^\circ ) = \frac{{opposite}}{{ ...