2 ms·
Since high school in the 80s I still remember the phonetic mnemonic "soh cah toa" one teacher mentioned off the cuff once. sine is opposite over hypotenuse co
by antod 1y ago
Since high school in the 80s I still remember the phonetic mnemonic "soh cah toa" one teacher mentioned off the cuff once.
sine is opposite over hypotenuse
cosine is adjacent over hypotenuse
tangent is opposite over adjacent
- peterfirefly 1y agoThe unit circle diagram is nicer because it naturally works with angles bigger than 180 and negative angles. If you look at the unit circle with a radius and the intersection point with the circle, you naturally get a right triangle of the kind your mnemonics apply to. It also has the advantages of being language/culture blind.