Answer:
To find the area of the composite figure, divide it into two parts. The first one is a right triangle with a height of 4cm and a base of 8cm (4cm was subtracted from 12cm). The second part is a square with a side of 4cm.
[tex]A_{T} =A_{triangle} +A_{square} =\frac{1}{2} bh+s^{2}[/tex]
[tex]A_{T} =\frac{1}{2} (4)(8)+4^{2} =32cm^{2}[/tex]
Note: I think the 8cm indicated on the left is incorrect, and the area can be computed without it.
