Lines
A part of a line that includes two points called endpoints.
Line Segment
an angle that measures greater than 0and less than 90 degrees
Acute Angle
4 sided shape, ALL sides are congruent (same), opposite sides are parallel, 4 right angles
square
1/8 +2/8 =
3/8
52 divided by 4
13
A straight path of points in a plane that continues without end in both directions - no endpoints
Line
a figure formed by two line segments or rays that share the same endpoint
angle
4 sided shape, OPPOSITE sides are congruent (same), opposite sides are parallel, 4 right angles
rectangle
4 1/5 + 3 3/5 =
7 4/5
110 divided by 2
55
A line with one endpoint that goes on forever in ONE direction
Ray
a tool used to measure angles
protractor
4 sided shape, opposite sides are congruent (same), opposite sides are parallel, 2 acute angles and 2 obtuse angles
parallelogram
5 5/10 + 11 6/10
17 1/10
185 divided by 5
37
Lines that meet or cross each other to form a right Angle
Perpendicular Lines
an angle that measures greater than 90 but less than 180 degrees
obtuse angle
4 sided shape, ONE pair of opposite sides are congruent (same), ONE pair of opposite sides are parallel.
trapezoid
10/12 + 3/12
1 1/12
742 divided by 5
148 R 2
Two lines that are always the same distance apart from each other and NEVER meet
Parallel Lines
an angle that measures EXACTLY 90 degrees
right angle
ANY shape with 4 straight sides AND 4 angles
quadrilateral
8/10 + 8/10
1 6/10
583 divided by 9
64 R 7