From Omilili

**Trapezoid** Format...:

I introduce the **trapezoid** concept which implies something is being trapped about the subject. http morning ... Every day I find something creative to do with my life. --Miles Davis Using **trapezoid** if it adds anything I find interesting. 1: no 2: no 3: h .... 4: yes, **definitely** 5: no 6: some 7: yes

From Yahoo Answers

**Question:**rectangle,rhombus, triangle, trapezoid

**Answers:**Only the rectangle has all of these properties. Some trapezoids also do, but those particular trapezoids are also rectangles. Those rhombi having all these properties are squares, which are special cases of rectangles. A triangle never has four angles, let alone right angles.

**Question:**rhombus,trapezoid rectangle or a parallelogram

**Answers:**Rectangle. A rhombus would only have congruent diagonals if it's a square. A trapezoid would only have congruent diagonals if it's isosceles. A parallelogram would only have congruent diagonals if it's a rectangle.

**Question:**I. rhombus
II. parallelogram
III. square
IV. trapezoid
A) I, II, III
B) None of These
C) I
D) II

**Answers:**Every rectangle is a parallelogram and a trapezoid. But only SOME rectangles are rhombuses and/or squares.
II and IV are correct.

From Youtube

### Median of a Trapezoid - YourTeacher.com - Geometry Help

For a complete lesson on median of a trapezoid, go to www.yourteacher.com - 1000+ online math lessons featuring a personal math teacher inside every lesson! In this lesson, students learn the definitions of a trapezoid, an isosceles trapezoid, and the median of a trapezoid. Students also learn the following theorems related to trapezoids. The base angles of an isosceles trapezoid are congruent. The median of a trapezoid is (a) parallel to the bases and (b) has a length equal to the average of the lengths of the bases. Students are then asked to solve problems related to these concepts using Algebra.

### Definition of a Trapezoid - YourTeacher.com - Geometry Help

For a complete lesson on trapezoids, go to www.yourteacher.com - 1000+ online math lessons featuring a personal math teacher inside every lesson! In this lesson, students learn the definitions of a trapezoid, an isosceles trapezoid, and the median of a trapezoid. Students also learn the following theorems related to trapezoids. The base angles of an isosceles trapezoid are congruent. The median of a trapezoid is (a) parallel to the bases and (b) has a length equal to the average of the lengths of the bases. Students are then asked to solve problems related to these concepts using Algebra.

### Area of a Trapezoid - YourTeacher.com - Geometry Help

For a complete lesson on area of a trapezoid, go to www.yourteacher.com - 1000+ online math lessons featuring a personal math teacher inside every lesson! In this lesson, students learn the formula for the area of a trapezoid, and are asked to solve problems using this formula. Note that right triangle formulas and trigonometry are used extensively in the problems in this lesson.

### Properties of a Rhombus - YourTeacher.com - Geometry Help

For a complete lesson on rhombuses, go to www.yourteacher.com - 1000+ online math lessons featuring a personal math teacher inside every lesson! In this lesson, students learn the definitions of a rectangle, a rhombus, and a square. Students also learn the following theorems. The diagonals of a rectangle are congruent. The diagonals of a rhombus are perpendicular and bisect the angles of the rhombus. The midpoint of the hypotenuse of a right triangle is equidistant from the three vertices. Students are then asked to solve problems related to these concepts using Algebra.