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picture1_M1 2 Practice Answers


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File: M1 2 Practice Answers
name class date 7 2practice form g points lines and planes use the figure below for exercises 1 8 note that rn pierces the plane at n it is not ...

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                            Name                       Class            Date            
                     7.2Practice                                                                        Form G
                            Points, Lines, and Planes
                                                                          <  >
                            Use the figure below for Exercises 1–8. Note that RN pierces the plane at N. It is 
                            not coplanar with V.
                                                                      R    M
                                                                A    N        X
                                                                    C
                                                           V
                              1. Name two segments shown in the figure. Answers may vary. Sample: NM and NX
                                                         <  >    <  >
                              2. What is the intersection of  CM and RN? point N
                              3. Name three collinear points. Answers may vary. Sample: points C, N, and M
                              4. What are two other ways to name plane V? Answers may vary. Sample: plane CNX 
                                                                        and AXM
                              5. Are points R, N, M, and X coplanar? no                        >      >
                              6. Name two rays shown in the figure. Answers may vary. Sample: NM and NC    >
                              7. Name the pair of opposite rays with endpoint N. Answers may vary. Sample: NM  
                                                                                    >
                              8. How many lines are shown in the drawing? 3  and NC
                            For Exercises 9–14, determine whether each statement is always, sometimes, or 
                            never true.
                                  >       >
                              9.  GH and HG are the same ray. never 
                                 >      >
                             10.  JI and JL are opposite rays. sometimes
                             11. A plane contains only three points. never
                             12. Three noncollinear points are contained in only one plane. always
                                 <  >
                             13. If EG lies in plane X, point G lies in plane X. always
                             14. If three points are coplanar, they are collinear. sometimes
                             15. Reasoning Is it possible for one ray to be shorter in length than  
                               another? Explain. It is not possible. Each ray has an endpoint, but 
                               each continues on in one direction without end. They are the same 
                               length because they are both infinitely long.           <  >
                             16. Open-Ended Draw a figure of two planes that intersect in ST.
                               Sample:                                                             S  T
                                              Copyright © by Pearson Education, Inc., or its affiliates.  All Rights Reserved.  
                            Name                       Class            Date            
                            Practice (continued)                                                        Form G
                            Points, Lines, and Planes
                             17. Draw a figure to fit each description.
                               a.  Through any two points there is exactly one line.
                                  Sample answer:
                               b. Two distinct lines can intersect in only one point.
                                  Sample answer:
                                                            >                     >
                             18. Reasoning Point F lies on EG and point M lies on EN. If F, E, and M are 
                               collinear, what must be true of these rays?
                                They are either opposite rays or identical rays.
                             19. Writing  What other terms or phrases mean the same as postulate?
                                Answers may vary. Samples: axiom, statement of fact, assumption, statement of truth
                             20. How many segments can be named  
                               from the figure at the right? 6                                 F         G
                                                                                   D      E
                            Use the figure at the right for Exercises 21–29.       A             B
                            Name the intersection of each pair of planes  
                            or lines.               <  >
                             21. planes ABP and BCD AB                                O     P
                               <  >    <  >                                                         D           C
                             22.  RQ and RO point R  < >
                             23. planes ADR and DCQ DR
                                                     < >
                             24. planes BCD and BCQ BC                                                R      Q
                               <  >    <  >
                             25.  OP and QP point P
                            Name two planes that intersect in the given line. Answers may vary. Samples given:
                               <  >                   <  >                  <  >                  <  >
                             26.  RO              27.  CQ               28.  DA               29.  BP
                               ODR and OPR            CQR and CQP           OAD and BAD           CBP and APB
                            Coordinate Geometry Graph the points and state whether they are  
                            collinear. Check students’ graphs.
                             30.  (0, 0), (4, 2), (6, 3)  yes           31. (0, 0), (6, 0), (9, 0) yes
                             32.  (-1, 1), (2, -2), (4, -3)  no         33. (1, 2), (2, 3), (4, 5) yes
                             34.  (-2, 0), (0, 4), (2, 0)  no           35. (-4, -1), (-1, -2), (2, -3) yes
                                              Copyright © by Pearson Education, Inc., or its affiliates.  All Rights Reserved.  
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...Name class date practice form g points lines and planes use the figure below for exercises note that rn pierces plane at n it is not coplanar with v r m a x c two segments shown in answers may vary sample nm nx what intersection of cm point three collinear are other ways to cnx axm no rays nc pair opposite endpoint how many drawing determine whether each statement always sometimes or never true gh hg same ray ji jl contains only noncollinear contained one if eg lies they reasoning possible be shorter length than another explain has an but continues on direction without end because both innitely long open ended draw intersect st s t copyright by pearson education inc its affiliates all rights reserved continued fit description through any there exactly line answer b distinct can f en e must these either identical writing terms phrases mean as postulate samples axiom fact assumption truth named from right d abp bcd ab o p rq ro adr dcq dr bcq bc q op qp given cq da bp odr opr cqr cqp oad...

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