Download Guided Notes Trapezoids Date: Period: _____ A Trapezoid is a

Geometry
Name: __________________________
Guided Notes
Trapezoids
Date: _______________ Period: _____
A Trapezoid is a quadrilateral with exactly ______________ _______________ of
__________________________ sides that are ____________________.
The ______________________ _________________ are called bases of the trapezoid.
The _____________________________________ sides are called legs.
A trapezoid has __________________ ________________________ of base angles.
A trapezoid is isosceles if:
(a). one pair of _____________________ _____________________ are congruent
(b). the _________________________ are congruent
Theroem - If a trapezoid has one pair of congruent base angles, then it is an isosceles trapezoid.
Theorem - If a trapezoid has congruent diagonals, then it is an isosceles trapezoid.
If a trapezoid is isosceles then:
(a). _________________ are congruent
(b). _________________ ________________ are congruent
(c). _____________________ are congruent
Trapezoid Base Angles Theorem - If a trapezoid is isosceles, then each pair of base angles is congruent.
Trapezoid Diagonals Theorem - If a trapezoid is isosceles, then its diagonals are congruent.
Geometry
Guided Notes
Trapezoids
Trapezoids
Name: __________________________
Date: _______________ Period: _____
1. Must have 1 pair of opposite sides parallel
Isosceles Trapezoids
1. Legs are congruent
2. Each pair of base angles are congruent
3. Diagonals are congruent
To Prove that a Trapezoid is Isosceles
1. Must have one pair of congruent base angles
OR
2. Must have congruent diagonals
Midsegment of a Trapezoid
The ___________________ of a trapezoid is the segment that connects the ___________________ of its
_____________.
Midsegment Theorem for Trapezoids -The midsegment of a trapezoid is ______________________ to
each base, and its length is ___________ the ________________ of the lengths of the bases.
Examples: (All these figures are Trapezoids.)