Trapezoids Sec 6 6 one A trapezoid is

Trapezoids Sec: 6. 6

one A trapezoid is a quadrilateral with exactly _____ parallel pair of ___________ sides. Example: In a trapezoid, ONLY one pair of opposite sides can be parallel. If both pairs of opposite sides are parallel, the quadrilateral is a parallelogram. Bases The parallel sides are called ________. Legs The nonparallel sides are called ________. In a trapezoid there are two pairs of Base _________ angles.

Base Leg Base Angles Base Leg

If the legs of a trapezoid are congruent, then the Isosceles trapezoid is an _____ Example: According to the property above, which two sides are congruent? DK OR ____ and ____ Label the picture appropriately.

Theorem 8. 18 : Both pairs of base angles of an isosceles trapezoid are Congruent. According to the property above, which two pairs of angles are congruent? D O ________ K R ________ Label the picture appropriately. Theorem 8. 19 : The diagonals of an isosceles trapezoid are Congruent. According to the property above, which two segments are congruent? DR KO ________

Median of a trapezoid is the segment that joins The _____ the midpoints of its legs. According to the statement above, if RM is the median, which segments are congruent to each other? ________ Theorem 8. 20 : The median of a trapezoid is Parallel to the bases, and its measure is one-half the sum of the measures of the Bases.

4 6 20

2 5 15

No Yes Yes Yes No No No No Yes

IXL – N 8 (Due on the 22 nd) Past IXL Assignments Late: G 1, G 4 and N 4, N 5 Due on the 20 th: N 6 and N 7