Thursday, August 12, 2010

Amazing Math

Basic Terms and Definitions

Recall that a part (or portion) of a line with two end points is called a line-segment
and a part of a line with one end point is called a ray. Need geometry homework help free. Note that the line segment AB is denoted by AB , and its length is denoted by AB. The ray AB is denoted by AB, and a line is denoted by AB.

However, we will not use these symbols, and will denote the line segment AB, ray AB, length AB and line AB by the same symbol, AB. The meaning will be clear from the context. Sometimes statistics problems online small letters l, m, n, etc. will be used to denote lines.

If three or more points lie on the same line, they are called collinear points;
otherwise they are called non-collinear points. Recall that an angle is formed when two rays originate from the same end point. The rays making an angle are called the arms of the angle and the end point is called the vertex of the angle. free statistics answers You have studied different types of angles, such as acute angle, right angle, obtuse angle, straight angle and reflex angle in earlier classes

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