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12 November, 19:00

How can you find the area of a polygon that is not for which you know an area formula

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  1. 12 November, 21:39
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    See below.

    Step-by-step explanation:

    If it is a regular polygon then you can look up the formula or break it into shapes you do know the formula.

    If it is irregular or a composite figure, break it into regular polygons which do have formulas to find the area. Here is an example:

    Example:

    Find the area of the composite figure by splitting the figure into two shapes - two rectangles.

    One rectangle is 2 x 9 = 18.

    The other rectangle is 2 x 4 = 8.

    Together the area is 18 + 8 = 26.
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