Answer:
Area of the shape is 21 m².
Explanation:
From the given figure it is clear that the figure contains one square with edge 3 m and 4 congruent triangles with base 3 m and height 2 m.
The area of a square is


The area of square is 9 m².
The area of a triangle is

The area of a triangle whose base is 3 m and height 2 m is

The area of a triangle is 3 m². So, the area of 4 triangles is

The area of 4 triangles is 12 m².
The area of shape is

Therefore the area of the shape is 21 m².