Trapezoids+P3+-+ZC

= Trapezoids By Craig & Zach

Has 1 pair of parallel sides Base angles Nonparallel sides are called legs Altitude- the altitude of a trapezoid is the perpendicular distance from one base to the other Isosceles trapezoid If the legs are congruent then it is a isosceles trapezoid __Midsegment of a trapezoid-__ segment that connects the midpoints of its legs

normal

8.17

Midsegment of s trapezoid is parallel to each base and its length is one half the sum of the lengths of the bases.

Isosceles Trapezoids Trapezoids have exactly 1 pair of parralel sidesIsosceles Trapezoids Theorem:8.14- If a trapezoid is isosceles then each pair of base angles are congruent



Theorem:8.16 - a trapezoid is isosceles if and only if its diagnols are congruent



website that shows different styles of trapezoids (scroll down and click on side tabs) Trapezoid Site

Sample problems Video On Trapezoids Origin of the Trapezoid -Comes from the British name Trapezium -Has been used since 1570 from the late latin word trapezium