What is a good way to remember the sine, cosine and tangent rules of a triangle?
If you are trying to find the sine of an angle, remember: SOH
The sine of an angle (S)= the length of the opposite side (O) / the length of the hypotenuse (H)
If you are trying to find the cosine of an angle, remember:
The cosine of an angle (C) = the length of the adjacent side (A) / the length of the hypotenuse (H)
If you are trying to find the tangent of an angle, remember: TOA
The tangent of an angle (T) = the length of the opposite side (O) / the length of the adjacent side (A)
When you put all three rules together it makes: SOH CAH TOA
Some simple mnemonics to remember this is:
Saddle Our Horses, Canter Away Happily, To Other Adventures
Some Old Hairy, Camels Are Hairier, Than Others Are
She Offered Her, Cat A Huge, Tray Of Apples!
HW
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