What does STAFFDEL mean? - Definition of STAFFDEL - STAFFDEL stands for congressional staff delegation. By AcronymsAndSlang.com: Image Source: Image HTML: HTML with link: Share this picture:
Every triangle has three sides and three angles, some of which may be the same. The sides of a triangle are given special names in the case of a right triangle, with the side opposite the right angle being termed the hypotenuse and the other two sides being known as the legs. All triangles are convex and bicentric.
Geometry/Right Triangles and Pythagorean Theorem - Right triangles. 1  Right triangles are triangles in which one of the interior angles is 90o. A 90o angle is called a right angle. 2  The side opposite of the right angle is called the hypotenuse. The sides adjacent to the right angle are the legs.