Classifying Quadrilaterals - Geometry Worksheet With Answers

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LESSON 18.3
Name
Classify Quadrilaterals
A quadrilateral has four sides and four angles.
Quadrilaterals are grouped by their angles, by the lengths
of their sides, and by any parallel sides. The table will
help you compare different quadrilaterals.
Grouping
Side Lengths
Parallel Sides
Angles
can be
0 to 2 pairs
General
angles vary
4 different lengths
parallel sides
Quadrilaterals
1 pair
lengths can vary
angles vary
Trapezoids
parallel sides
opposite sides
2 pairs
2 acute and 2
Parallelograms
equal
parallel sides
obtuse, or 4 right
opposite sides
2 pairs
4 right
Rectangles
equal
parallel sides
2 pairs
2 acute, 2 obtuse,
4 sides equal
Rhombuses
parallel sides
or 4 right
2 pairs
4 sides equal
4 right
Squares
parallel sides
Match the drawing with as many terms as possible.
1.
2.
3.
4.
5.
6.
rhombus
trapezoid
square
A.
B.
C.
rectangle
parallelogram
general quadrilateral
D.
E.
F.
For 7–8, use the table above.
How are rhombuses and squares alike?
7.
Thearallel sides.
How are rhombuses and squares different?
8.
A s les; a rhombus can have
2 acute and 2 obtuse an les.
RW94 Reteach

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