The area of a parallelogram is 450sq m and its altitude is twice the corresponding base. Then the length of the base is?
Choose one.
A) 8
B) 9
C) 7
D) 6
E) 15
2x * x = 450 =&gt; x= 15   Answer: 15
<result>E</result>
The area of a parallelogram is 450sq m and its altitude is twice the corresponding base. Then the length of the base is?