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UNIT 1 Identify Points, Lines, and Planes. One capital letter. A finite space represented by a dot. A. A. Point A. 0 dimensions. pt. A. Two capital letters. Through any two points, there is one line. Extends without end. m. C. B. A. 1 dimension. line m.
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UNIT 1 Identify Points, Lines, and Planes
One capital letter A finite space represented by a dot. A A Point A 0 dimensions pt. A
Two capital letters Through any two points, there is one line. Extends without end. m C B A 1 dimension line m
First letter is initial point C Initial point, then continues in one direction S B A
Two rays with the same initial point, but go in opposite directions C and B A
Points that lie on the same line C Pts A, B, and C B A
3 noncollinear points A Y Extends in all directions, forming a surface Plane XYZ X Z Or letter near the corner of the diagram. Plane A 2 dimensions
A Y X Points that lie on the same plane Z Pts. X, Y, and Z
Set of points 2 or more figures have in common Pt. B Plane CGE and Plane DBF
2. Name three points that are collinear C, B, and D
3. Give another name for plane F. Plane EBA
Name a point that is not coplanar with A, B, and E. pt. C pt. D
9. Sketch the figure described. a. Points A, B, and C, & D that are noncollinear. Draw A B D C
9. Sketch the figure described. b. Four points that are coplanar. A B C D
9. Sketch the figure described. c. Three lines that intersect at one point. A B F C G D E
9. Sketch the figure described. d. Two rays that intersect at their endpoint. B C A
10. Graph the inequality on the number line. Tell whether the graph is a segment, a ray or rays, a point, or a line. a. x > 2
10. Graph the inequality on the number line. Tell whether the graph is a segment, a ray or rays, a point, or a line. b. -1 < x < 3
10. Graph the inequality on the number line. Tell whether the graph is a segment, a ray or rays, a point, or a line. c. x < 0 or x > -1
HW Problem # 16 D Ans: A A E B C **If you have a ruler, bring it tomorrow