PARALLEL LINES DEFINITION HOW TO
PARALLEL LINES DEFINITION SOFTWARE

Radius: The radius of a circle is the distance from the circle’s center to a point on the circle, and is constant for a given circle. Another way to think about parallel lines is that they are “everywhere equidistant.” No matter where you measure, the perpendicular distance between two parallel lines is constant. Parallel Lines: Parallel lines are two lines in the same plane that never intersect. Inscribed Angle: An inscribed angle is an angle whose vertex is on a circle and whose rays intersect the circle. Vertex: A vertex is the point where two sides of a polygon meet.Ĭentral Angle: A central angle is an angle with its vertex at the center of a circle.Ĭircle: A circle is the set of all points in a plane that are equidistant from a given point in the plane, which is the center of the circle.ĭiameter: A circle’s diameter is a segment that passes through the center and has its endpoints on the circle. It has a point on one end, and it extends infinitely in the other direction. Ray: A ray can be thought of as a half a line. Quadrilateral: A quadrilateral is a polygon with exactly four sides. We usually represent a point with a dot on paper, but the dot we make has some dimension, while a true point has dimension 0. Point: A point specifies only location it has no length, width, or depth. A plane can be defined by two intersecting lines or by three non-collinear points. In fact, none of these is actually a plane, because a plane must continue infinitely in all directions and have no thickness at all. We often represent a plane by a piece of paper, a blackboard, or the top of a desk. Plane: A plane is a flat, two-dimensional object. A line connects two points via the shortest path, and then continues on in both directions. It continues forever in two directions (so it has infinite length), but it has no width at all. Line: A line has only one dimension: length.

PARALLEL LINES DEFINITION SOFTWARE

Consider the advantages and disadvantages of using dynamic software in studying geometry.

Learn to use the properties of circles to make different constructions.

Learn about the properties of angles formed when a pair of parallel lines is cut by a transversal.

PARALLEL LINES DEFINITION HOW TO

Learn how to use dynamic geometry software to construct geometric figures and explore their properties.

In this session, you will do the following: You will look at some formal geometric definitions, but the emphasis will be on the discovery of properties and relationships among geometric figures.įor information on required and/or optional materials for this session, see Note 1. You will also use this software to discover properties of parallel lines and circles. Part A: Introduction to Geometer’s Sketchpadįor information on required and/or optional materials for this session, see the Notes tab.In this session, you will use dynamic geometry software to construct figures with given characteristics such as perpendicular segments, parallel segments, and segments that are equal in length.

Parallel lines definition