donald+geometry+PRO

=__DONALD BURNS & BECKY KAUFFMAN.__= Perpendicular lines: 2 lins that intersect at 90 degrees. Parallel Lines: 2 line that continue without ever intersecting. & Points:this is the end point that stops a line from going on forever. points have no area or lenght. & Slope: in a slope a higher value indicates the incline. Sphere: a 3-D figure that represents a ball like shape: & diagonal:this is a never ending line that goes in a slanted direction. & Square: A 4 sided figure,all sides are equal. & Rhombus: a 4 side figure on a tilt.All angles are a 45 degrees. Right Triangle: this is a triangle and one angle of that triangle being 90 degrees. Ray:this is when on part aof a line has an endpoint and the other half of the line goes on forever. Arc: An arc is a closed segment that make a curve at the top. 11.parallelagram: this is a sided with at least 1 pair of parallel lines.

12.Line: lines are never ending stips that go on forever . 13.Isosceles triangles: have 2 angles that are congruent.

14.Line segment: this is a line with 2 endpoint at the end of the line.

15.Pentagon: This is a 5 sided polygon.

16.Octagon:This is an a sided polygon.

17.Hexagon:this is a 6 sided polygon.

18.Diameter:diameter is the full length across a circle.

19.Radius:The radius is half of the diameter. Half of the circle.

20.rectangle:this is a quadrilateral,the opposite sides are equal.

21.Obtuse angle: Obtuse angles are angles greater than 90 degrees.

22.Acute angles:Acute angles are angles below 90 degrees.

23.Reflection: This is when a figure is facing the same exact figure like a mirror.I call this a flip.

24.regular Polygons:polygons are close figures(SHAPES).

25.Equilateral Triangles: These are triangles with sides and angles that are all congruent.

26.corresponding angles:corresponding angles are congruent angles.

27.Scalene triangles:these triangles have no sides that are congruent, their all diffrent lengths.

28.plane: A plane is what lines sit on.

29.trapezoid:this is a 4 sided figure. Its a quadrilateral/parallelagram.

30.Concave polygon: These types of polygons can have slanted enclosed in lines.

31.Kite: this is a quadrilateral with 4 sides that can be grouped with 2 pairs of equal lenghts.

32.semi-circle:This is a 2-D half circle.

33.Ajacent angles: This is lying between a specified angle like right angles.

34.Cylinder: A cylinder is a 3-D figure that is round with a flat circle top and a flat circle bottom.

35.Segment:this is a line or ray that passes through a segment.

36.Cone: A cone is a 3-D figure that has a point at the top and a circle base.

37.Pyramid: A pyramid is a 3-D figure that is made up of triangles and has a square base.

38.Transversal: a line that cuts through 2 parallel lines. straight THROUGH!

39.Skew lines: these lines are lines that do not intersect but, are not parallel.

40. Vertical angles: they are the angles opposite of each other when 2 lines cross.