question_answer

The area of an isosceles trapezium is \[176\,\,c{{m}^{2}}\]and the height is 2/11th of the sum of its parallel sides. If the ratio of the length of the parallel sides is 4 : 7, then the length of the diagonal (in cm) is

A)  28                               

B)  \[2\sqrt{137}\]

C)  24                               

D)  \[\sqrt{137}\]

E)  None of these