6.6

Question 1

Trapezoid

Answer 1

Is a quadrilateral with exactly one pair of parallel sides.

Base = parallel sides 
Legs = non parallel sides

Question 2

Isosceles Trapezoid

Answer 2

Trapezoid with congruent legs.

Question 3

Base Angles

Answer 3

Pair of angles that share a common base

***each trapezoid has two pair

Question 4

Thm. 6.17: Trapezoid Base Angles Thm.

Answer 4

If a trapezoid is isosceles, then each pair of base angles is congruent.

Question 5

Thm. 6.18: Trapezoid Diagonals Thm.

Answer 5

If a trapezoid is isosceles, then its diagonals are congruent.

Question 6

Thm. 6.19

Answer 6

If a trapezoid has one pair of congruent base angles, then it is an isosceles trapezoid.

Question 7

Thm. 6.20

Answer 7

If a trapezoid has congruent diagonals, then it is an isosceles trapezoid.

Question 8

Midsegment

Answer 8

The midsegment of a trapezoid is the segment that connects (joins) the midpoints of its legs.

Question 9

Thm. 6.21: Midsegment Thm. for Trapezoids

Answer 9

The midsegment of a trapezoid is parallel to each base, and its length is half the sum of the lengths of the bases.