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27 Cards in this Set
- Front
- Back
An angle that has a measure less than a right angle (less than 90 degrees)
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Acute Angle
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A figure formed by two line segments or rays that share the same endpoint
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Angle
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The bottom of a figure
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Base
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The amount a container can hold when filled
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Capacity
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A figure with no open spaces in its sides
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Closed Figure
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Having the same size and shape
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Congruent
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A polygon that is a flat surface of a solid figure
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Face
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A movement of a figure to a new position by flipping the figure over a line.
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Flip
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Lines that cross each other at exactly one point
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Intersection
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A straight line going on forever in opposite directions
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Line
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A part of a line that includes two points, called endpoints, and all the points between them.
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Line Segment
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An angle that has a measure greater than a right angle
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Obtuse
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Lines that never intersect and are always the same distance apart
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Parallel lines
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Two lines that intersect to form four right angles
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Perpendicular
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An exact location in space
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Point
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A part of a line that has a beginning but no end.
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Ray
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A flip
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Reflection
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An angle that forms a square cornger and has a measure of 90 degrees.
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Right
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A movement of a figure to a new position by rotating the figure around a point.
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Rotation
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The movement of a figure by a slide, flip, or turn
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Translation
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A movement of a figure to a new position without turning or flipping it.`
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Slide
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The point where two or more rays meet; the point of intersection of two sides of a polygon; the point of intersection of three or more edges of a solid figure; the top point of a cone; the plural of vertex is vertices.
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Vertex
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A flat surface that extends without end in all directions.
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Plane
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A figure in a plane that is formend by lines that are curved, straight, or both.
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Plane Figure
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A closed plane figure whose sides are straight lines that are connected end-point to end-point.
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Polygon
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Having the same shape and the same of different size
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similar polygons
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A polyon that has sides that are the same length
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Regular Polygon
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