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Mathematics 16 Online
OpenStudy (anonymous):

ABCD is a quadrilateral. The diagonals of the quadrilateral are perpendicular to each other : at E. If AE = 8.7 ft, BE = 5.6 ft, CE = 2.4 ft, and DE = 2.4 ft, find the area of ABCD.

OpenStudy (mathstudent55):

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OpenStudy (mathstudent55):

You have a quadrilateral that is made up of 4 triangles: Triangles ABE, BEC, CED, and AED. The angles that have veterx E, angles BEA, BEC, cED, and AED are all right angles. For each triangle, you have the lengths of the sides that form the right angle. That means you have the base and height. Find each area and add them all up.

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