Key Facts & InformationINTRODUCTIONIn this section, we will first try to identify and define what are points, lines, line segments, rays, and angles. A point is a location in space. A point is usually represented by a dot. A line is a straight path of points that goes on and on in...
The unknown angles can be easily calculated when two parallel lines are cut by a transversal. The following facts help in finding the unknown angles. When parallel lines are cut by a transversal, The corresponding angles that are formed are always equal. Thealternate interior anglesthat are forme...
Corresponding angles are pairs of angles formed by a line intersecting two parallel lines and creating angles that are in the same position with respect to the lines. All of the angles in this situation have measurements that are related. These are facts about the lines and the angles formed....
Facts about Corresponding Angles If non-parallel lines are cut by a transversal, the corresponding angles are not congruent. There is no specific relationship between the corresponding angles. If parallel lines are cut by a transversal, the corresponding angles are congruent. ...
Alternate interior angles are angles formed when two parallel or non-parallel lines are intersected by a transversal. A pair of angles in which one arm of each of the angles is on opposite sides of the transversal and whose other arms are directed in opposite directions and do not include ...
Parallel linesare lines in a plane that are always the same distance apart. Parallel lines never intersect. When two angles are supplementary Each is called? So, "supplementary" means "something when supplied to complete a thing". And so are supplementary angles, a pair of two angles forming...
In a rhombus, opposite angles are congruent, but they don't have to be 90 degrees. If this is the case, we have a square, which is a particular case of a rhombus.Is a Rhombus a Quadrilateral? A rhombus is a four-sided polygon with four congruent edges and two pairs of parallel ...
The converse of this theorem is “if a transversal intersects two lines, such that the pair of co-interior angles are supplementary, then the two lines are parallel”. Facts about consecutive interior or co-interior angles: Consecutive interior or co-interior angles contains different vertices but...
Use informal arguments to establish facts about the angle sum and exterior angle of triangles, about theanglescreated whenparallel linesare cut by a transversal, and the angle-angle criterion forsimilarityof triangles. For example, arrange three copies of the same triangle so that the sum of the...
A hexagon is a flat two-dimensional six sided shape. It may or may not have equal sides andangles. Based on these facts, the important properties of a hexagon are as follows: It has six sides, six edges, and six vertices. All the side lengths are equal or unequal in measurement. ...