Lines and Angles(2)LINESANDANGLES Definitions Freepowerpointsathttp://www.worldofteaching.com ModifiedbyLisaPalen PARALLELLINES •Definition:Parallellinesarecoplanarlinesthatdonotintersect.•Illustration:Usearrowstoindicatelinesareparallel.l B m A D •Notation:||means“isparallelto.”C l||m AB||...
-Straightlinesare180°AngleTypes-Anglescanbenamedaccordingtotheirsizes1)Acute:Areangleslessthan90°2)Obtuse:Areanglesbetween90°and180° 3)Reflex:Areanglesbetween180°and360° NamingAngles -Wheretheraysmeet(vertex)givesthemiddleletteroftheanglename e.g.Namethefollowingangles a)C b)X B ABCorCBA XYZ...
Equidistant Points Point, Lines, Planes, Angles Millau Bridge Sir Norman Foster Millenium Park Frank Lloyd Wright Fallingwaters Frank Lloyd Wright Point, Lines, Planes, Angles Equidistant Points Equidistant Points B is equidistant from A and C. A point that is the same distance away from two sepa...
S1Linesandangles S1.1LabellinglinesandanglesS1.2ParallelandperpendicularlinesS1.3CalculatinganglesS1.4Anglesinpolygons 2of69 ©BoardworksLtd2004 Lines InMathematics,astraightlineisdefinedashavinginfinitelengthandnowidth.Isthispossibleinreallife?3of69 ©BoardworksLtd2004 Labellinglinesegments Whenalinehas...
Converse of the Perpendicular Bisector Theorem If a point is equidistant from the endpoints of a segment, then that point lies on the perpendicular bisector of the segment. Then, P is on the perpendicular bisector of the line segment. If AP = BP P A B P B ...