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We can divide the large polygon into 3 smaller known polygons
1 square and 2 rectangles
The dimensions of the square will be:
width: 3 units
length: 3 units
The dimensions of the 1st rectangle will be:
width: 4 units
length: 7 + 13 = 20 units
The dimensions of the 2nd rectangle will be:
width: 5 units
length: 13 units
The area formula of square is (side)²
A = (6)² = 36 units²
The area formula of a rectangle is (length x width)
A (1st) = 4 x 20
= 80 units²
A(2nd) = 5 x 13
= 65 units²
Now, we add all the areas to get the final area
Area total = 36 + 80 + 65
= 181 unit²
Your final answer will be option D