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You used basic geometric concepts and properties to solve problems. Identify and model points, lines, and planes. Identify intersecting lines and planes. undefined term definition point defined term line space plane collinear coplanar intersection 1 Name Lines and Planes Name Lines and Planes A. Use the figure to name a line containing point K. B. Use the figure to name a plane containing point L. Answer: The line can be named as line a. Answer: The plane can be named as plane B. There are three points on the line. Any two of the points You can also use the letters of any three noncollinear can be used to name the line. points to name the plane. plane JKM plane KLM plane JLM Name Lines and Planes The letters of each of these names can be reordered to A. Use the figure to name a line create other acceptable names for this plane. For containing the point X. example, JKMcan also be written as JMK, MKJ, KJM, KMJ, and MJK. There are 15 different three-letter A. line X names for this plane. B. line c A. A C. line Z B. B C. C D. 0% 0% 0% 0% D. D A B C D 2 Model Points, Lines, and Planes B. Use the figure to name a A. Name the geometric shape modeled by a plane containing point Z. 10 ×× 12 patio. ×× A. plane XY B. plane c A. A Answer: The patio models a plane. C. plane XQY B. B C. C D. plane 0% 0% 0% 0% D. D A B C D Model Points, Lines, and Planes B. Name the geometric shape modeled by a water A. Name the geometric shape modeled by a colored glass on a table. dot on a map used to mark the location of a city. A. point Answer: The glass on the table models a point B. line segment A. A on a plane. B. B C. plane C. C D. none of the above 0% 0% 0% 0% D. D A B C D 3 Draw Geometric Figures B. Name the geometric shape modeled by the ceiling of your classroom. A. point B. line segment A. A C. plane B. B C. C D. none of the above 0% 0% 0% 0% Draw a surface to represent plane R and label it. D. D A B C D Draw Geometric Figures Draw Geometric Figures Draw a line anywhere on the plane. Draw dots on the line for point A and B. Label the points. 4
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