5. define the following terms: (i) line segment (ii) ray (ii) Collinear points (iv) intersecting lines (v) concurrent lines (vi) parallel lines
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Answer:
*In geometry, a line segment is a part of a line that is bounded by two distinct end points, and contains every point on the line that is between its endpoints.
*In geometry, a ray can be defined as a part of a line that has a fixed starting point but no end point. It can extend infinitely in one direction.
*In geometry, collinearity of a set of points is the property of their lying on a single line. A set of points with this property is said to be collinear.
*In Euclidean geometry, the intersection of a line and a line can be the empty set, a point, or a line.
*Lines in a plane or higher-dimensional space are said to be concurrent if they intersect at a single point.
*In geometry, parallel lines are lines in a plane which do not meet; that is, two straight lines in a plane that do not intersect at any point are said to be parallel.
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