The area of the polygon is 147 square units. Therefore, option A is the correct answer.
We need to find the area of the given polygon.
What is the area of a polygon?
The area of a polygon is the region occupied by a polygon. Polygons can be regular and irregular. The basic polygons which are used in geometry are triangle, square, rectangle, pentagon, hexagon, etc. All these polygons have their own area.
Now, area=13×12-3×3=156-9=147 square units.
The area of the given polygon is 147 square units. Therefore, option A is the correct answer.
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