There are three figures of areas
x2,12x and
z in the below figure. Figures A and C are squares while figure B is a rectangle, with length of one side as
x. What should be the value of
z so that all the 3 figures can be arranged to form a square of side (x +6)?
![](https://s3-us-west-2.amazonaws.com/infinitestudent-images/ckeditor_assets/pictures/13919/content_3.jpg)