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Mathematics, 28.10.2020 19:00 miami158999

In the figure, the diagonals of a quadrilateral split it into four triangles. The areas of three of them are shown in the picture:
30 sq. cm
60square. cm
40square. cm
Calculate the area of the whole quadrilateral.

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In the figure, the diagonals of a quadrilateral split it into four triangles. The areas of three of...
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