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Transcript
Part 1
LINES
LINE SEGMENTS
RAYS
To name a line or a line segment you need to locate
And label two points on the line or line segment.
A
AB
Line AB
B
X
Y
XY
Line Segment XY
A RAY
A ray is named with only one end point
and a point on the ray.
G
H
GH
Ray GH
Parallel Lines
LINES
Perpendicular Lines
Intersecting Lines
In the real world
Parallel
Lines
In the real world
Intersecting
Lines
Congruent Figures
Congruent figures have exactly the same size and shape.
Each side is exactly the same length.
Each angle is exactly the same size
Triangles – 2 ways to classify
our three sided polygons
 Angles
 Right Triangle
 Sides
 Equilateral Triangle – all 3 sides of equal length
 Scalene – “scary” sides, all different lengths
 Isosceles Triangle – 2 sides of equal length