Special Right Triangles
45-45-90 Triangles
- Main article: 45-45-90 triangle
This concept can be used with any right triangle that has two angles. All 45-45-90 triangles are isosceles, so let's call both legs of the triangle
. If that is the case, then the hypotenuse will always be
.
30-60-90 Triangles
- Main article: 30-60-90 triangle
A 30-60-90 triangle is a right triangle that has a angle and a
angle. Let's call the side opposite of the
angle
. Then, the side opposite of the
angle would have a length of
. Finally, the hypotenuse of a 30-60-90 Triangle would have a length of
. There is also the ratio of
. With 2 as the hypotenuse and 1 opposite of the 30 degrees. That leaves
as the only length left.
See Also
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