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Lesson 30 Vocabulary

iReady Unit 5 L30 vocabulary

TermDefinition
right angle An angle with a measure of exactly 90 degrees
acute angle An angle with a measure of less than 90 degrees
obtuse angle An angle with a measure greater than 90 degrees but less than 180 degrees.
angle Two rays or line segments that share an endpoint.
line A set of connected points continuing without end in both directions.
line segment A part of a line with two endpoints.
vertex The point at which two line segments, lines, or rays meet to form an angle.
parallel lines Lines that are always the same distance apart. They do not intersect.
perpendicular lines Two intersecting lines that form right angles.
point The exact location in space represented by a dot.
ray A part of a line that has one endpoint and goes on forever in one direction.
Created by: Tbischer
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