A rectangle board is 1200 millimeters long and 700 millimeters wide. What is the area of the board in square meters? Do not round your answer. Be sure to include the correct unit in your answer.

Given:
Length of the rectangular board: 1200 milimeters
Width of the rectangular board: 700 millimeters
To find:
The area of the board in square meters
Step-by-step solution:
We know that:
Area of a board = length × width
Area of a board = 1200 × 700
Area of a board = 8,40,000 millimeter square
Now we will convert this area into square meters:
1 square meter = 1000000-millimeter square
Thus,
8,40,000 millimeter square = 0.84 square meters