1-1 Skills Practice. Points, Lines, and Planes. Lesson 1-1. Refer to the figure. 1. Name a line that contains point e. n G

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1 M T RIO 1-1 Skills ractice 1. ame a line that contains point e. 2. ame a point contained in line n. p n q e 3. What is another name for line p? 4. ame the plane containing lines n and p. raw and label a figure for each relationship. 5. oint K lies on RT. 6. lane J contains line s. opyright lencoe/mcraw-hill, a division of The Mcraw-Hill ompanies, Inc. 7. Y lies in plane and contains 8. Lines q and f intersect at point Z point, but does not contain point H. in plane U. 9. How many planes are shown in the figure? W 10. How many of the planes contain points and? 11. ame four points that are coplanar. 12. re points,, and coplanar? xplain. hapter 1 7 lencoe eometry

2 M T RIO 1-1 ractice 1. ame a line that contains points T and. 2. ame a line that intersects the plane containing points Q,, and. S R j M T Q g h 3. ame the plane that contains T and QR. raw and label a figure for each relationship. 4. K and intersect at point M 5. line contains L(-4, -4) and M(2, 3). in plane T. Line q is in the same coordinate plane but does not intersect LM. Line q contains point. y O x T Q 6. How many planes are shown in the figure? W S 7. ame three collinear points. R X 8. re points, R, S, and W coplanar? xplain. M VISULIZTIO ame the geometric term(s) modeled by each object. 9. STO 10. tip of pin 11. strings opyright lencoe/mcraw-hill, a division of The Mcraw-Hill ompanies, Inc. 12. a car antenna 13. a library card hapter 1 8 lencoe eometry

3 M T RIO 1-1 Study uide and Intervention ame In geometry, a point is a location, a line contains points, and a plane is a flat surface that contains points and lines. If points are on the same line, they are collinear. If points on are the same plane, they are coplanar. xample Use the figure to name each of the following. a. a line containing point The line can be named as l. lso, any two of the three points on the line can be used to name it.,, or b. a plane containing point The plane can be named as plane or can be named using three noncollinear points in the plane, such as plane, plane, and so on. l xercises 1. ame a line that contains point. l opyright lencoe/mcraw-hill, a division of The Mcraw-Hill ompanies, Inc. 2. What is another name for line m? 3. ame a point not on. 4. What is another name for line l? 5. ame a point not on line l or line m. raw and label a figure for each relationship. 6. is in plane Q. 7. ST intersects at. 8. oint X is collinear with points and. 9. oint Y is not collinear with points T and. 10. Line l contains points X and Y. m hapter 1 5 lencoe eometry

4 M T RIO 1-1 Study uide and Intervention (continued) in Space Space is a boundless, three-dimensional set of all points. It contains lines and planes. The intersection of two or more geometric figures is the set of points they have in common. xample a. ame the intersection of the planes O and. The planes intersect at line. b. oes intersect point? xplain. o. is coplanar with, but is not on the line. O xercises 1. ame the intersection of plane and line. 2. ame the intersection of and. 3. oes intersect? xplain. 4. ame the three line segments that intersect at point. 5. ame the line of intersection of planes and H. 6. o planes and H intersect? xplain. J H I opyright lencoe/mcraw-hill, a division of The Mcraw-Hill ompanies, Inc. hapter 1 6 lencoe eometry

5 M T RIO 1-1 Word roblem ractice 1. STRTS The map shows some of the roads in downtown Little Rock. Lines are used to represent streets and points are used to represent intersections. our of the street intersections are labeled. What street corresponds to line? W. 29th St. Washington St. S. eder St. W. 20th St. sher ve. 4. RHITTUR n architect models the floor, walls, and ceiling of a building with planes. To locate one of the planes that will represent a wall, the architect starts by marking off two points in the plane that represents the floor. What further information can the architect give to specify the plane that will represent the wall? 2. LYI Marsha plans to fly herself from ainsville to Miami. She wants to model her flight path using a straight line connecting the two cities on the map. Sketch her flight path on the map shown below. 5. OSTRUTIO Mr. Riley gave his students some rods to represent lines and some clay to show points of intersection. elow is the figure Lynn constructed with all of the points of intersection and some of the lines labeled. opyright lencoe/mcraw-hill, a division of The Mcraw-Hill ompanies, Inc. Tallahasee ainsville Tampa St. etersburg 100 mi Jacksonville aytona each Orlando Miami ort Lauderdale 3. MS athan s mother wants him to go to the post office and the supermarket. She tells him that the post office, the supermarket and their home are collinear, and the post office is between the supermarket and their home. Make a map showing the three locations based on this information. k m n p a. What is the intersection of lines k and n? b. ame the lines that intersect at point. H c. re there 3 points that are collinear and coplanar? If so, name them. hapter 1 9 lencoe eometry