| A | B |
|---|
| leg | side other than hypotenuse on a right triangle |
| hypontenuse | the side opposite the 90 degree angle |
| sine ratio | opposite/ hypotenuse |
| cosine ratio | adjacent / hypotenuse |
| tangent ratio | opposite/adjacent |
| 45-45 right triangle | isoscles right triangle |
| side opposite 30 degree angle | one-half the hypotenuse |
| side opposite 60 degree angle | side opp. 30 degree angle times the square root of 3 |
| Pythagorean theorem | the sum of the legs squared equals the hypotenuse squared |
| simplify the radical | do not leave a number under the radical that has a perfect square |
