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Work out the area of each rectangle separately and then add them up altogether.

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Q: How do you find area of complex polygon composed of 4 rectangles?
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What's area formula of an irregular polygon?

Divide polygon into rectangles, then use area formula for rectangle: Area = (high a + high b) / 2 x length c If polygon contains triangle, then triangle can be considered as rectangle with one of its side length is close to zero.


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A polygon with no congruent sides is not going to have any convenient formula by which the area can be calculated, however, you can always break it up into a series of triangles and rectangles, and then calculate the area of those, and add up the results.


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How do you find the area of complex figures?

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