Honors Geometry Section 1.2 Measuring Lengths. Consider this number line . On a number line, the real number assigned to a point is called the _________ of the point. Find the distance between C and H. coordinate.
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Consider this number line.On a number line, the real number assigned to a point is called the _________ of the point.Find the distance between C and H.
For the previous problem.
The distance between the two points C and H is the same as the length of , which can be writtenas ____ . (Note: _________________).
While we are permitted to say AB = GH, we cannot say because they are not the exact same set of points. Instead we write
is congruent to
Postulate 1.2.2: If two segments have equal lengths, then they are congruent.“Tick” marks are used to indicate congruent segments in a figure.
On the number line at the top of the page, we determined that .This illustrates the next postulate.Postulate1.2.3: Segment Addition Postulate: If R is between P and Q, then ______________Note: In order for one point to be between two other points, the points must be collinear.