Cos sin tan

In any right angled triangle, for any angle:

The sine of the angle = the length of the opposite side

the length of the hypotenuse

The cosine of the angle = the length of the adjacent side

the length of the hypotenuse

The tangent of the angle = the length of the opposite side

the length of the adjacent side

The hypotenuse of a right angled triangle is the longest

side, which is the one opposite the right angle. The

adjacent side is the side which is between the angle in

question and the right angle. The opposite side is opposite

the angle in question.

sin = o/h cos = a/h tan = o/a

Often remembered by: soh cah toa…read more

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