Answer:
The area of the board in square millimeters is:
1200000 square millimeters.
Explanation:
The length of the rectangular board is: 1.5 meters.
and the width of the rectangular board is: 0.8 meters.
We know that:
1 meters= 1000 millimeters
This means that:
The length of the rectangular board is: 1500 millimeters.
and the width of the rectangular board is: 800 millimeters.
Now we know that the area of rectangle is given by:
![\text{Area}=\text{Length}* \text{width}](https://img.qammunity.org/2019/formulas/mathematics/high-school/h1r9pxq1h02zex786q4lgi5fzax5rzccs5.png)
i.e. we have:
![\text{Area}=1500* 800\\\\\text{Area}=1200000\ \text{square millimeters}](https://img.qammunity.org/2019/formulas/mathematics/high-school/fi94egxlib4yz05bvi6ymyno7w8dz6hk4d.png)