10. In quadrilateral ABCD, M and N are midpoints of AB and CD respectively. X is the midpointof MN. Show thata) AD + BC = 2MNb) XA + XB + XC + XD = 0AMBXNC

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Answered: 10. In quadrilateral ABCD, M and N are…

Elementary Geometry for College Students

6th Edition

ISBN:9781285195698

Author:Daniel C. Alexander, Geralyn M. Koeberlein

Publisher:Daniel C. Alexander, Geralyn M. Koeberlein

Chapter8: Areas Of Polygons And Circles

Section8.1: Area And Initial Postulates

Problem 32E

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10. In quadrilateral ABCD, M and N are midpoints of AB and CD respectively. X is the midpoint of MN. Show that a) AD + BC = 2MN b) XẢ +XB +XC +XD = 0 A M B X N C