LFP+Mathematical+Reflections,+p+51

4.11.08 PR Mathematical Reflection Investigation #4

The pythagorean theorem can be used to check if a triangle is a right triangle, to find the hypotenuse and to find a missing side length.
 * In what ways is the Pythagorean Theorem useful? Give at least two examples.**

A 30-60-90 triangle is the exact have of an equilateral triangle. Since the equilateral triange has the angles 60-60-60, when you cut it in half, you get 30-60-90. Another special property, is that to find a missing side length, you can use the formula: Base/shortest side x square root of 3.
 * Describe the special properties of a 30-60-90 triangle.**