Can you show the figure itself not just by describing. In that way, it's easier to solve the area of the polygon.
Answer:
number 2
Step-by-step explanation:
Answer:

Step-by-step explanation:
I'm going to assume that your equation is 
So to evaluate it we need to simplify it. Find like terms and perform addition/subtraction on them.

I found the corresponding image.
The step towards proving the similarity of triangles DEF and GED is:
ANGLE E IS CONGRUENT TO ITSELF.
ΔDEF is a right triangle. Its hypotenuse is EF, its long leg is DF, its short leg is DE.
ΔGED is also a right triangle. Its hypotenuse is DE, its long leg is DG, its short leg is GE.
Only Angle E is in both triangles and its measure remains the same.