Parallelogram ABCD has area 144, with AB=16 and BC=12 . Find the length of segment DX.
https://latex.artofproblemsolving.com/4/d/1/4d10a87ed294936b7bb767175647e8596eb66c4d.png
Area of a parallel is the base times the height.
When BC is the base, the height is DX.
So: 144 = 12 x DX ---> DX = 12