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# Philips Geometry Guide To Success.Ppt

## on Mar 31, 2009

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A sixth grade student geometry to success

A sixth grade student geometry to success

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## Philips Geometry Guide To Success.PptPresentation Transcript

• Philip's Geometry Guide to Success Lines Angles Triangles Quadrilaterals Circles
• Lines
• Points
• Line Segments
• Rays
• Lines
• Intersecting Lines
• Perpendicular Lines
• Parallel Lines
• Skew Lines
• Points
• A point is a precise location in space. It is labeled with a letter.
Point a Point b Point c Point d
• Line Segments
• A line line that starts at one point and ends at another
• Ray
• A line that starts at a point and keeps going past the other
• Intersec t ing
• Two lines that meet at a point and do not make 90 degree angles
• Perpendicular
• The lines intersect at right angles
• Parallel
• Lines that never cross and are on the same plane
• Skew
• Lines that are not on the same plane
• Plane
• A flat surface that goes on forever in all directions and is defined by three points
P
• Angles
• acute
• obtuse
• right
• straight
• vertex/vertices
• complementary
• supplementary
• vertical/ opposite
• Acute
• An angle that is less than a 90 degree angle
• Obtuse
• An angle that is more than a 90 degree angle
• Right
• An angle that is exactly 90 degrees
• Straight
• An angle made up by two 90 degree angles
• Vertex/Vertices
• The point where the lines to make the angle meet
• Complementary
• Two angles that if you add them together you will get 90 degrees
45 45
• Supplementary
• Two angles that if added together you get 180 degrees
110 70
• Vertical/Opposite
• An angle that is opposite to the same angle
• An angle that is sharing the same vertex with another angle
F D E C Angle DFE Angle EFC
• Triangles
• Right
• Obtuse
• Acute
• Scalene
• Isosceles
• Equilateral
• Sum of internal angles
• Perimeter
• Area
• Right
• If the largest measure of the triangle is 90 degrees
• Obtuse
• When the largest angle of the triangle is more than 90 degrees
• Acute
• When the largest angle of the triangle is less than 90 degrees
• Scalene
• When all the sides of the triangle are not equal
• Isosceles When there are two sides of the triangle that are the same measure
• Equilateral
• When all the sides of the triangle have the same measure
• Sum of internal angles
• All the sides in the triangle add up to 180 degrees
60 60 60
• Perimeter
• The sum of all the sides of the triangle
50 70 60 50+70+60=180
• Area
• When you multiply length times width and then divide it by 1/2.
30 60 60 times 30 divided by 1/2
• Trapezoid
• Parallelogram
• Rectangle
• Rhombus
• Square
• Area of a rectangle
• Area of a square
• Area of a parallelogram
• Area of a trapezoid
• Trapezoid
• A figure that has 1 set of parallel sides.
• Parallelogram
• A figure that has 2 sets of parallel sides
• Rectangle
• A figure that has 2 parallel sides and all the angles are congruent
• Rhombus
• A parallelogram that has no congruent sides
• Square
• A parallelogram that has 2 parallel sides and all the angles are congruent
• Area of a rectangle
• You multiply length times width
L W L times W= A
• Square
• You multiply length times width
L W L times W = A
• Area of a Parallelogram
• You multiply length times width
8 12 8 times 12= A
• Area of a Trapezoid
• You put 2 trapezoids together to make a rectangle and ad the top to the bottom then multiply it to width and divide by 2.
W L 4+ 6= 10 divided by 2 4
• Circles
• Chord
• Diameter
• Arc
• Sector
• Circumference
• Area of a Circle
• Chord
• The chord is the longest line segment in the circle
• Diameter
• The diameter is the radius times 2
• Arc
• The arc is the distance on the outside edge of the circle
• The radius is diameter divided by 2
• Sector
• The sector is a piece of the area.
• Circumference
• The distance around the circle (C= D times 3.14)
• Other Polygons
• Hexagon
• Octagon
• Pentagon
• Hexagon
• The hexagon is a polygon with six sides
• Octagon
• The octagon is a polygon with eight sides
• Pentagon
• The pentagon is a polygon with five sides
• The End