Geometry Chapter 1 part 4

Service Description

Defined Terms is covered in this next session. "Table 1.2 lists some geometric terms and their definitions." Table 1.2 Term Definition Illustration 'Line segment' "A 'line segment' is a part <____ . ______ . _____> of a line consisting of two A B points, called end 'points', Notation ------- and the set of all points ( written AB with a line points between them. over it.) ^ 'Ray' "A 'ray' is a part of a line consisting of (with these / a given point, called the 'end point', lines /M and the set of all points on one side connected / of the end point." ___ L to M and dots /L notation LM for the letters / with a line over "A ray is always named by using two points, the first of which must be the end point. The arrow drawn above always points to the right. (Connecting the line with dots for the letters) 'Opposite rays' 'Opposite rays' are 'rays' that have <-----------------------------> the same end point and that form X K B a line." They are expressed as KX and KB with lines over them and arrows on their ends on the right. They are opposite rays. (Continue in the next lesson) -------->and -------> KX KB