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Transcript 
Geometry
February 7, 2017
6.6 Trapezoids and Kites
DO NOW
Calculate the midpoint:
1. 3 and 5
2. -6 and 10
3. (3, 5) and (7, 1)
4. (6, 5) and (-4, 1)
Today’s Objectives
1. Explore the properties of trapezoids.
Definition: Trapezoid
A quadrilateral with EXACTLY ONE pair of
parallel sides.
Parts of a Trapezoid
The PARALLEL SIDES are called BASES.
The OTHER SIDES are called LEGS.
Trapezoid Midsegment
The length of the midsegment is the
AVERAGE of the lengths of the bases.
Trapezoid Midsegment
Trapezoid Midsegment
Trapezoid Midsegment
Trapezoid Midsegment
Definition: Isosceles Trapezoid
A trapezoid with congruent legs.
Property: Isosceles Trapezoid
Both pairs of base angles are congruent.
Property: Isosceles Trapezoid
The diagonals are congruent.
Summary: Trapezoids
One pair of parallel sides (bases) and one
pair of non-parallel sides (legs).
Midsegment: Average of the base lengths.
Isosceles: Congruent legs, base angles, and
diagonals.
Practice (Worksheet)
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