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
![A=a^2](https://img.qammunity.org/2020/formulas/mathematics/high-school/9hoekchdli3rpcdilamb0qyrgzs0fikr6u.png)
![A_1=(3)^2=9](https://img.qammunity.org/2020/formulas/mathematics/middle-school/883we7rvxbb8xvuudv00sxpp4tdppmx7mb.png)
The area of square is 9 m².
The area of a triangle is
![A=(1)/(2)* base * height](https://img.qammunity.org/2020/formulas/mathematics/middle-school/h7igh70m5qeyea1ps0m4stsbd2iyjeuamo.png)
The area of a triangle whose base is 3 m and height 2 m is
![A=(1)/(2)* 3 * 2=3](https://img.qammunity.org/2020/formulas/mathematics/middle-school/kr1ffypwr7qvsofuu1xcxdw4ad3mx15kyp.png)
The area of a triangle is 3 m². So, the area of 4 triangles is
![A_2=4 * A=4* 3=12](https://img.qammunity.org/2020/formulas/mathematics/middle-school/qsojkzsn2m44l5k95jb4ommexl75v1uory.png)
The area of 4 triangles is 12 m².
The area of shape is
![A=A_1+A_2=9+12=21](https://img.qammunity.org/2020/formulas/mathematics/middle-school/bi9zdc5oz3e2xtgn086iei13s42rekw4dq.png)
Therefore the area of the shape is 21 m².