ABGF is a square with half the perimeter of square ACDE. GD = 4 in. Find the area of the shaded region.


The edge of the small square and big square is √8 and 2√8. Then the area of the shaded region is 4 square inches.
It is a polygon that has four sides. The sum of the internal angle is 360 degrees. In a square, opposite sides are parallel and all sides are equal and each angle is 90 degrees. And its diagonals are also equal and intersect at the mid-point.
Let the side of a small square be a then the side of a big square be 2a.
The diagonal of the small square will be
[tex]\begin{aligned} a^2+a^2 &=4^2\\2a^2 &= 16\\a^2 &=8\\a &= \sqrt8 \end{aligned}[/tex]
Then the side of the big square will be √8.
The area of the shaded region will be
[tex]\rm Shaded \ area = area \ of \ big \ square - area \ of \ small \ square\\\\Shaded \ area = (2 \sqrt8)^2 - (\sqrt8)^2\\\\Shaded \ area = 32 - 8 \\\\Shaded \ area = 24[/tex]
More about the square link is given below.
https://brainly.com/question/13747846