2 TYPES OF LINES 1. Parallel Lines - Two lines that never intersect. 2. Perpendicular lines- Two lines that intersect forming right angles.
3 Types of Angles Right angle - an angle with 90 degrees - an angle between 0 – 90 degreesAcute angleObtuse angle- an angle between 90 – 180 degreesStraight angle- an angle with 180 degrees in it.
4 Types of Polygons Triangles Quadrilateral Pentagon Hexagon Heptagon OctagonNonagonDecagonUndecagonDodecagonN- gonHas three sidesHas four sidesHas five sidesHas six sidesHas seven sidesHas eight sidesHas nine sidesHas ten sidesHas eleven sidesHas twelve sidesHas N- sides
5 PolygonsPolygons are simple, closed, planar geometric figure whose sides are line segments.The number of sides is the same as the number of angles.Concave polygon have an indentation.Convex polygons have no indentation.
6 Types of Quadrilaterals Has one set of parallel sides.Has two sets of parallel sidesA parallelogram with all equal sidesA parallelogram with all right anglesA Rectangle with all equal sides.TrapezoidParallelogramRhombusRectangleSquare
7 Regular PolygonsA regular polygon has all equal sides and all equal angles.A square is an example of a regular quadrilateral.Here are some other examples.
8 TRIANGLES There are 180 degrees in a triangle !!!! Right Equilateral In regards to ANGLESRight-Has 1 right angleObtuse-Has 1 obtuse angleAcute-Has all acute anglesEquiangular – has all angles the same measure.In regards to SIDESEquilateral- all equal sidesIsosceles- 2 equal sidesScaleneNo equal sidesThere are 180 degrees in a triangle !!!!