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Trapezoids
Theorems:
1.
1.
2.
One pair of ll sides called
bases.
The nonparallel sides are
called legs.
Isosceles Trapezoids
1.
2.
3.
The Legs are 
The diagonals are 
Two pairs of congruent base
angles
base1
Base angle
A trap. is isosc. if and only
if base angles are .
2. A trap. is isosc. If and only
if the diagonals are .
3. The midsegment is one
half the sum of the bases.
M= ½ (base1 + base2)
Base angle
Midsegment
Legs
Legs
Base angle
Base angle
base2
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