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### Geometry1.4 Basic Geometrical Concepts

 Point has no dimensions. It is represented by dot. Line has one dimension. It is represented by a line with two arrowheads but it extends without end. Plane has two dimensions. It is represented by a shape that looks like a floor or a wall, but it extends without end. Space has three dimensions. Intersections: Two or more geometric figures intersect if they have one or more points in common. The intersection of the figures is the set of points the figure have in common. The intersection of two different lines is a point. The intersection of two different planes is a line. For videos and additional resources on this topic, please see: MyndBook.com/go.php?to=207_887 Directions: Answer the following questions. On a sheet of paper represent the following: points, line, parallel lines, collinear points, coplanar points, coplanar lines, concurrent lines.
 Q 1: Lines and planes are ______ of space.subsetssupersetsintersectionsconcurrent objects Q 2: If two lines in a plane have a common point, the common point is called the ________.singular pointconcurrent pointpoint of intersectioncoplanar point Q 3: Lines belonging to the same plane are called ________.concurrent linessingular linescoplanar linesinfinite lines Q 4: Space is _______ of points.an unusual seta concurrent seta finite setan infinite set Q 5: The set of all points is called _____.coplanarspaceconcurrent pointsnumber set Q 6: The number of lines that can be drawn through two different points in a plane is ______.threeonetwomany Q 7: If three or more lines pass through the same point, the lines are called _____.parallel linescoplanar linesconcurrent linesfinite lines Q 8: If three or more lines have a common point, the common point is called ______.coplanar pointpoint of intersectionsingular pointconcurrent point Question 9: This question is available to subscribers only! Question 10: This question is available to subscribers only!