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Answer:

Add up the length of all the sides to get the perimeter. Calculate the area of the composite figure by adding up the areas of the smaller shapes that make up the composite figure . The figure is made up of rectangles. To find the length of side A, look at the two rectangles that make up the figure.

Step-by-step explanation:

i only want to help not answer i did this on a test ): it is hard

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