The area of a parallelogram is 242sq m and its altitude is twice the corresponding base. Then the length of the base is? Select:
A) 8 B) 9 C) 7 D) 11 E) 2
2x * x = 242 =&gt; x= 11   Answer: 11
<result>D</result>
The area of a parallelogram is 242sq m and its altitude is twice the corresponding base. Then the length of the base is?