The SOHCAHTOA Method.

In Trig, you need to learn what formula to use and when.

This should help you.

When you use SIN, that's the SOH part

S = SIN

O = Opposite

H = Hypotenuse

Meaning to use SIN you must know the angles/lengths of the OPPOSITE and HYPOTENUSE

and you put them together like SIN = OPPOSITE over HYPOTENUSE

When you use COS, you think the CAH part

C = COS

A = Adjacent

H = Hypotenuse

Meaning to use COS you must know the angles/lengths of the ADJACENT and the HYPOTENUSE.

You put them together like COS = ADJACENT over HYPOTENUSE

finally, there's TOA

It's for when you are needing TAN.

T = TAN

O = Opposite

A = Adjacent

for this you gotta know the numbers for the Opposite and Adjacent Angles, and put them together like

TAN = OPPOSITE over ADJACENT

Notes:

Opposite Angle - the Angle opposite of your starting angle

Adjacent Angle - the Angle touching your starting angle

Hypotenuse - The longest sided angle

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