6.6 Trapezoids Flashcards
Trapezoid
A quadrilateral with exactly one pair of parallel sides
Bases of a Trapezoid
Parallel sides
Legs of a Trapezoid
Nonparallel sides
Base Angles of a Trapezoid
Pair of angles that share a common base
Isosceles Trapezoid
Trapezoid with congruent legs
Trapezoid Base Angles Theorem
If a Trapezoid is isosceles, then each pair of base angles are congruent
Trapezoid Diagonals Theorem
If a trapezoid is isosceles, then its diagonals are congruent
If a trapezoid has one pair of base angles then..
It is an isosceles trapezoid
If a trapezoid has congruent diagonals…
Then it is an isosceles trapezoid
Midsegment of a Trapezoid
Segment that connects the midpoints of the legs of a trapezoid
Midsegment Theorem for Trapezoids
The midsegment of a trapezoid is parallel to each base and its length is half the sum of the lengths of the bases