SOLUTION: The perimeter of parallelogram ABCD is 54 and its altitude is 7. If the difference between the lengths of a pair of adjacent sides of the parallelogram is 9, find its area. How do

Algebra ->  Parallelograms -> SOLUTION: The perimeter of parallelogram ABCD is 54 and its altitude is 7. If the difference between the lengths of a pair of adjacent sides of the parallelogram is 9, find its area. How do      Log On


   

Question 856929: The perimeter of parallelogram ABCD is 54 and its altitude is 7. If the difference between the lengths of a pair of adjacent sides of the parallelogram is 9, find its area. How do I solve this?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,



Question States*** b - a = 9   0r  b = 9%2Ba%29

P = 2b + 2a = 54  

0r   b +  a = 27

   (9+a) + a = 27

        2a = 18

         a = 9   and b = 18    A = 18*7 = 126 units^2