Quadrilaterals Worksheet With Answers Page 44

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Trapezoids
Definition
A trapezoid is a quadrilateral with one pair
of sides parallel.
A trapezoid can also be defined as a quadrilateral with at least two sides parallel. For our
purposes, we will use the definition above.
The two sides that are parallel are called bases. The two sides that are not parallel are called legs
as shown below.
base
leg
leg
base
A trapezoid also has two pairs of base angles. These base angles are shown in the figure below.
base angle
base angle
base angle
base angle
A trapezoid with congruent legs is an isosceles trapezoid. The figure below is an example of an
isosceles trapezoid.

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