Thursday, March 17, 2011

right triangles and sine, cosine and tangent

 The ratio of the opposite side of a right triangle to the hypotenuse the sine and give it the symbol
sin = o / h
The ratio of the adjacent side of a right triangle to the hypotenuse is called the cosine and given the symbol
cos = a / h
Finally, the ratio of the opposite side to the adjacent side is called the tangent and given the symbol
tan = o / a
If we knew at least one of each part of the ratio we could find the answer.

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1 comment:

  1. UnknownMarch 17, 2011 at 5:10 PM

    good picture, good start with summary. you need a symbol for the angle (or a number example) in your equations.

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