| A | B |
|---|
| Pythagorean Triple | 5, 12, 13 is an example |
| Pythagorean Theorem | IF you know two sides of a right triangle use this to find the third |
| Tangent | opposite over adjacent |
| Sine | opposite over hypotenuse |
| Cosine | adjacent over hypotenuse |
| Hypotenuse | side not used in tangent ratio |
| Inverse Trigonometric Ratios | used to find acute angle measures when side lengths are known |
| Solve a right triangle | find all the side lengths and angle measures |
| legs | used in tangent ratio |
| SOH CAH TOA | mnemonic used to remember trig ratios |
| acute triangle | square of the longest side is < sum of the sq. of the other two |
| obtuse triangle | square of the longest side is > sum of the sq. of the other two |
| right triangle | square of the longest side = sum of the sq. of the other 2 |
| square root | inverse of square |
| altitude | geometric mean of the pieces of the hypotenuse |
| isosceles right triangle | its hypotenuse is leg * sq. rt. 2 |
| square root of three | long leg divided by short leg in a 30-60-90 triangle |
| triangle sum theorem | use to find the last angle measure when two are known |
| trigonometric ratios | in a table on page 925 of the text |
| trigonometry | branch of math dealing with ratios between the sides of a right triangle |
| Pythagorean Theorem | sum of the squares of the legs = sq. of the hyp. |
| Converse of the Pythagorean Theorem | IF a^2 + b^2 = c^2, then it's a right triangle |
| Trigonometric Ratio | special proportions for the sides of a right triangle, based on each acute angle measure |
