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5th grade math 10.3

polygons

QuestionAnswer
What is an OPEN plane figure? a flat figure where ends do not meet
What is a CLOSED plane figure? a flat figure where the ends meet
What is a vertex? the point at which line segments meet
What is a polygon? a closed plane figure made up of line segments called sides. Pairs of sides meet at a vertex and do not cross each other
How are ploygons classified? They are classified by the number of sides.
How many sides and angles (vertices) does a heptagon have? 7 sides and 7 angles(vertices)
How many sides and angles(vertices) does an octogon have? 8 sides and 8 angles(vertices)
How many sides and angles(verticies) does a nonagon have? 9 sides and 9 angles(vertices)
How many sides and angles(verticies) does a decagon have? 10 sides and 10 angles(vertices)
How many sides and angles(vertices) does a pentagon have? 5 sides and 5 angles(vertices)
What is a REGULAR polygon? a polygon that have all sides of the same length and all angles the same measure
Created by: lauriemurphy
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