question_answer

In the following figure, ABCD is a rectangle. If O is the midpoint of AB, find the area of the shaded region.

A)  \[40\,\,c{{m}^{2}}\]               

B)  \[48\,\,c{{m}^{2}}\]

C)  \[56\,\,c{{m}^{2}}\]               

D)  \[56\,\,c{{m}^{2}}\]

E)  None of these