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 ...

www.varsitytutors.com/hotmath/hotmath_help/topics/midsegment-of-a-trapezoid

A trapezoid, also called a trapezium in some countries, is a quadrilateral with ...
The **midsegment of a trapezoid** is the segment connecting the midpoints of the ...

www.brightstorm.com/math/geometry/polygons/trapezoid-midsegment-properties-problem-1

How to calculate the length of a **trapezoid midsegment** and use it to find the
angles it creates within a **trapezoid**. Video explanation and sample problems on
the ...

www.emathematics.net/polygons.php?def=trapezoid

Trapezoid Midsegment Properties. The **midsegment of a trapezoid** is the line that
connects the midpoints of the two nonparallel sides of the trapezoid.

www.geom.uiuc.edu/~dwiggins/conj20.html

A midsegment of a triangle is a segment connecting the midpoints of two ...
Extended Conjecture: (Trapezoid Midsegment Conjecture): The **midsegment of a**
...

www.mathwarehouse.com/geometry/quadrilaterals/trapezoid.php

The **midsegment of a trapezoid** is the segment that joins the midpoints of the
nonparallel sides of a trapezoid. In the trapezoid below, the midpoints of the ...

www.mathopenref.com/trapezoidmedian.html

**Trapezoid** median (**midline** or **midsegment**) definition and properties.

www.cut-the-knot.org/Curriculum/Geometry/GeoGebra/MidlineInTrapezoid.shtml

In a **trapezoid**, the **midline** is parallel to the bases and its length is half their sum.
Conversely, the line joining points on the two sides of a rapezoid, parallel to its ...