We can calculate the area of the tool by dividing it in parts and then sum the areas of the parts.
We will use the divisions already set:
- One rectangle with sides l = 3.25 in and w = 3.75 in.
- Four right triangles with height h = 0.75 in and base b = 3.75/2=1.875 in.
Then, we can calculate the area of the tool as the sum of the area of the rectangle and the area of the 4 triangles:
![\begin{gathered} A=A_r+4\cdot A_t \\ A=(l\cdot w)+4((b\cdot h)/(2)) \\ A=3.25\cdot3.75+4\cdot(0.75\cdot1.875)/(2) \\ A=12.1875+2.8125 \\ A=15 \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/4wp95hz5my96ynzpzcfbh5k5gta1qgs90g.png)
Answer: the area of the tool is 15 square inches.