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## Trapezoid

en.wikipedia.org/wiki/Trapezoid

In Euclidean geometry, a convex quadrilateral with at least one pair of parallel .... This yields as a special case the well-known formula for the area of a triangle, by considering a triangle as a ...

## Area of a Trapezoid - Math Goodies

www.mathgoodies.com/lessons/vol1/area_trapezoid.html

A trapezoid is a 4-sided figure with one pair of parallel sides. For example, in the diagram to the right, the bases are parallel. To find the area of a trapezoid, take ...

## What is the Formula for the Area of a Trapezoid? | Virtual Nerd

www.virtualnerd.com/pre-algebra/perimeter-area-volume/perimeter-and-area/area/trapezoid-area-formula

You could start by creating a parallelogram out of two trapezoids. Then, use the ... half of a parallelogram; trapezoid; area; formula; base 1; base 2; height.

## Area of trapezoids | Area and perimeter of polygons | Khan Academy

However, in trapezoid only two of the opposing sides are parallel to each other. Here's we explain how to find its ... Transition from unit squares to area formula.

## Isosceles Trapezoid -- from Wolfram MathWorld

mathworld.wolfram.com/IsoscelesTrapezoid.html

An isosceles trapezoid (called an isosceles trapezium by the British; Bronshtein and Semendyayev 1997, p. 174) is trapezoid in which the base angles are equal and therefore the left and right side lengths are also ... Isosceles Trapezoid Area.

## Area of Triangles and Trapezoids

mste.illinois.edu/courses/mat764fa04/folders/traska/MAT 764/Final Unit Plan/area_triangles_trapezoids.html

Develop and use formulas to determine the circumference of circles and the area of triangles, parallelograms, trapezoids, and circles and develop strategies to ...

## How to Calculate the Area of a Trapezoid: 5 Steps

www.wikihow.com/Calculate-the-Area-of-a-Trapezoid

Divide 147 cm<sup>2</sup> by 2 to get the final answer. 147 cm<sup>2</sup>/2 = 73.5 cm<sup>2</sup>. The area of the trapezoid is 73.5. You have just followed the formula for finding the area of a ...

Feb 27, 2013 ... Watch this step-by step colorful Math Video on how to find the area of a Trapezoid. Also, get a great visual understanding of the formula needed ...
Jul 31, 2012 ... Area of a trapezoid, step by step, example. For more videos on finding the area of a trapezoid, visit http://MathMeeting.com.
Dec 16, 2010 ... MyTutorZone.com - http://www.mytutorzone.com Find the area of a trapezoid but remember this algebra formula to help you out.
The formula for finding the area of a trapezoid (BrEng: trapezium) A = 1/2 x B1 x B2 x H.
B1 is the length of the top of the trapezoid, B2 is the length of the base of the trapezoid and H is the height.

### Area of a trapezoid. Definition and formula - Math Open Reference

www.mathopenref.com

Area of a trapezoid ("trapezium" in British usage). The number of square units it takes to completely fill a trapezoid. Formula: Average width × Altitude.

### How Do You Find the Area of a Trapezoid? | Virtual Nerd

www.virtualnerd.com

In this tutorial, you'll see how to identify those values and plug them into the formula for the area of a trapezoid. Then see how to simplify to get your answer!

### Finding the Area of Trapezoids - Illuminations

illuminations.nctm.org

Students discover the area formula for trapezoids, as well as explore alternative methods for calculating the area of a trapezoid. Instructional Plan; Objectives + ...