1.

In a quadrilateral ABCD if AB = 9 m, BC = 40 m, CD = 28 m, AD = 15 m and \[\angle ABC={{90}^{o}},\]find its area.

A. \[136\,{{m}^{2}}\]                              
B. \[~163\,{{m}^{2}}\]   
C.   \[~360\text{ }{{m}^{2}}\]     
D.   \[~306\text{ }{{m}^{2}}\]      
Answer» E.


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