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.
Angles are measured in degrees. A circle has 360 degress, and of course half of a circle is 180 degrees. OPPOSITE RAY - Any given point on a line determines exactly two rays, called opposite rays. This point is the common endpoint of the opposite rays. In the figure below ray PS and ray PQ are opposite rays, and P is the common endpoint. ANGLE - An angle is formed by two rays which begin at the same point (if the two rays lie on the same line, then it is called a straight angle).