Geometry - Area of Quadrilaterals

3 important questions on Geometry - Area of Quadrilaterals

For the special quadrilaterals, other than the square, what is the general formula to calculate the area?

Area = base * height

How does the Area formula for trapezoids, differ from that of the general formula?

With trapezoids, we can have 2 different bases (or bases of different lengths).

What are the 2 things you can do when a trapezoid has bases with different lengths and you have to calculate its area?

1) You can account for that by taking the average of the 2 bases.
2) Subdividing the trapezoid into a rectangle and 2 triangles.

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