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en.wikipedia.org/wiki/Trapezoid

In Euclidean geometry, a convex quadrilateral with at least one pair of parallel sides is referred to as a trapezoid in American and Canadian English but as a ...

The purpose of this task is for students to articulate a definition for a trapezoid. There are two competing definitions for "trapezoid": The exclusive definition of a ...

www.mathsisfun.com/geometry/trapezoid.html

(Jump to Area of a Trapezoid or Perimeter of a Trapezoid). A trapezoid is a 4- sided flat shape with straight sides that has a pair of opposite sides parallel ...

Jul 28, 2012 ... Geometry Teachers Never Spend Time Trying to Find Materials for Your Lessons Again! Join Our Geometry Teacher Community Today!

virtualnerd.com/middle-math/geometric-figures/polygons/trapezoid-definition

Note: A trapezoid is a special type of quadrilateral with some special properties. This tutorial introduces you to trapezoids and gives you a look at the special ...

www.mathinary.com/trapezoid.jsp

A trapezoid is a shape of plane geometry. It's a quadrilateral, where at least two sides are parallel. If a trapezoid has two pairs of parallel sides, it's also called a ...