Day 1 1-dimensional figures
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Transcript of Day 1 1-dimensional figures
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Rina Iati
Baresville Elementary
SouthWestern School District
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Line
A line goes on and on in both directions. A line is drawn with an arrow on each end
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This is called a point!
When it’s at the end of a line it is called an endpoint!
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Line Segment
A line segment is a part of a line. It is drawn with two endpoints
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Ray
A ray goes on and on in one direction. It is drawn with an arrow on one end and an endpoint on the other.
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Parallel lines are always the same distance apart. They will never touch.
“Enemy Lines”
Parallel Lines
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Can you find the parallel lines?
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Intersecting Lines
Intersecting lines are two lines that cross each other
“Friends”
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Perpendicular Lines
Perpendicular lines are two lines that intersect to form right angles.
90
“Married”
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Can you find the perpendicular lines?
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Perpendicular lines are also intersecting lines because they cross each other.
Perpendicular lines are a special kind of intersecting lines because they always form “perfect” right angles.
90
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Name each figure
PointLine
RayLine Segment
Perpendicular
IntersectingParallel
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Well Done!