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15 Cards in this Set

  • Front
  • Back
octagon
a polygon having eight sides
parallelogram
a quadrilateral that has both pairs of opposite sides congruent and parallel
pentagon
a polygon with five sides
perpendicular
two line segments are perpendicular if they meet at right angles
polygon
a simple closed figure in a plane formed by three or more line segments
quadrilateral
a polygon with four sides
rectangle
a quadrilateral with opposite sides congruent and parallel all all angles are at a right angle
regular polygon
a polygon having all sides congruent and all angles congruent
rhombus
a parallelogram with all sides congruent
right angle
an angle that measures 90 degrees
rotational geometry
a figure that can be turned or rotated less than 360 degrees about a fixed point so that the figure looks exactly as it did before being turned is said to have rotational symmetry
scalene triangle
a triangle in which no sides are congruent
side
a ray that is part of an angle
similar figures
figures that have the same shape but different sizes
square
a parallelogram with all sides congruent all angles right angles and opposite sides parallel