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which shapes are decomposed correctly so that it could be used to to find its area? assume side lengths are known.

A), B), D)

Step-by-step explanation:

A) There are two rectangles whose areas are just breadth×length which can be found easily. We also know the triangl's base and height.

B) Again, two rectangles and one triangle.

D) Area of the parallelogram is equal to the product of the one of the parallel sides and distance between the same pair of parallel lines. The area of lower triangle can be found subsequently.

C) Since the exact position of the point inside is not known, we cannot find the area of the components.

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step-by-step explanation: