T. rex's serrated, cone-shaped teeth were most likely used to pierce and grip flesh. Its two-fingered forearms could probably seize prey, but they were too short to reach its mouth. Scientists believe this powerful predator could eat up to 500 pounds (230 kilograms) of meat in one bite.
Angles and distances are measured from the total station to points under survey, and the coordinates (X, Y, and Z or easting, northing and elevation) of surveyed points relative to the total station position are calculated using trigonometry and triangulation.
The endpoint  is called the vertexâ¦ of the angle. The measure of an angle tells  how far one side is turned from the other side -0 degrees is no  turn and 360 degrees is one full turn. You can name angles by how  their measures compare to 90 degrees or 180 degrees.