To convert millimeters to inches, you can use the conversion factor where 1 inch is equal to 25.4 mm.
First, convert 400 mm to inches: \[ 400 , \text{mm} \div 25.4 , \text{mm/inch} \approx 15.748 , \text{inches} \]
Next, convert 4000 mm to inches: \[ 4000 , \text{mm} \div 25.4 , \text{mm/inch} \approx 157.48 , \text{inches} \]
So, 400 x 4000 mm is approximately:
- 15.75 inches x 157.48 inches (rounded to two decimal places).