**Area of a trapezoid. Definition, formula and calculator - Math …**
https://www.mathopenref.com/trapezoidarea.html

How to find the height (altitude) of a trapezoid give the two bases and the area. The main area formula above has four variables (area, two bases and height). If we know any three we can always find the fourth.So for example, if we know the area and two bases we can find the height, simply by re-arranging the main formula:Height (altitude) = 2ab1+b...

How to find the height (altitude) of a trapezoid give the two bases and the area. The main area formula above has four variables (area, two bases and height). If we know any three we can always find the fourth.So for example, if we know the area and two bases we can find the height, simply by re-arranging the main formula:Height** (altitude) = 2ab1+b...**

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