### Triangles

Triangles have so many properties. Remember these:

1. Any one side should be less than the sum of the other two.

2. Any one side should be greater than the (positive) difference of the other two.

Special Triangles:

1. 45-45-90: two legs are equal and

hypotenuse = length of leg * square root of 2.

2. 30-60-90: the longer leg = square root of 3 * shorter leg and

hypotenuse = 2 * shorter leg.

Posted by oneray at September 22, 2003 9:47 AM