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Quadrilaterals
Quadrilaterals
3.G.1. Understand that shapes in different
categories (e.g., rhombuses, rectangles, and
others) may share attributes (e.g., having four
sides), and that the shared attributes can define a
larger category (e.g., quadrilaterals). Recognize
rhombuses, rectangles, and squares as examples
of quadrilaterals, and draw examples of
quadrilaterals that do not belong to any of these
subcategories.
Quadrilaterals
Quadrilateral means "four
sides" (quad means
four, lateral means side).
A quadrilateral is a four-sided 2
dimensional polygon with four angles.
There are many kinds of
quadrilaterals.
Quadrilaterals
We are going to learn
about the five most
common types.
SQUARE
Square
-All sides congruent
-opposite sides parallel
-four right angles
PARALLELOGRAM
Parallelogram -Opposite sides parallel
-Opposite sides congruent
RHOMBUS
Rhombus-It’s a parallelogram
-four congruent sides
RECTANGLE
Rectangle -Opposite sides parallel
-opposite sides congruent
-four right angles
NOTE:
Squares,
Rectangles and
Rhombuses are all
Parallelograms!
Trapezoid
-Only one pair of sides
is parallel.