The area of a parallelogram is 1764sq m and its base is nine times size of the corresponding altitude. Then the length of the base is?  Choose the correct choice from the following answers:	A) 21	B) 9	C) 11	D) 14	E) 7
9x * x = 1764 =&gt; x   = 14   Answer: 14
<result>D</result>
The area of a parallelogram is 1764sq m and its base is nine times size of the corresponding altitude. Then the length of the base is?