You might remember SOHCAHTOA from your early trig days at school. SOHCAHTOA is a mnemonic device for remembering the definitions of the basic trig functions in terms of the sides of a right triangle.
We found it was really confusing for a lot of our students to remember the opposite and adjacent, and more often than not, it would just lead to more confusion.
One of our clever tutors remembered the mnemonic he had learned when he saw trig for the first time, and decided to share it with you:
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Sine = Perpendicular/Hypotenuse
Cosine = Base/Hypotenuse
Tangent = Perpendicular/Base