Arectangular board is 1.5 meters long and 0.8 meters wide. what is the area of the board in square millimeters? do not round your answer.

The area of the board in square millimeters is:

                1200000 square millimeters.

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:

i.e. we have:

i believe the correct answer is b.