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20 terms

Geometry: Shapes and Characteristics

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quadrilateral
figure with 4 sides
figure
another word for shape
length
how long a shape is
width
how wide a shape is
congruent
shapes are the same size and same shape
opposite
lines are across from each other
adjacent
lines are beside each other and meet at a corner
parallel
straight lines that never meet and are the same distance apart, like railroad tracks, never cross or touch
intersecting
straight lines that cross at any angle except right angle
perpendicular
straight lines that cross to make a perfect right angle
right angle
two lines that meet that make a perfect square corner
polygon
many sided shape that is closed
hexagon
figure with six sides
pentagon
figure with five sides
octagon
figure with eight sides
decagon
figure with ten sides
trapezoid
quadrilateral with 1 set of parallel sides. Has 2 acute angles and 2 obtuse angles.
square
quadrilateral with 4 right angles and all sides equal in length. Has 2 sets of parallel sides
rectangle
quadrilateral with 4 right angles. Opposite sides are equal in length. Has 2 sets of parallel sides.
rhombus
quadrilateral with 2 acute angles and 2 obtuse angles. opposite sides are parallel