You would need 16 tile to go across the width of the hallway.
The meter.
I believe that the average width of a pencil is 0.25 inchs or 0.6 centimeters.
820MM
on average about 6 feet.
Answer
3 feet.
3 feet.
21 feet
3 feet
Building codes for a single family dwelling typically require hallways to be a minimum of 3 ft (36 inches) in width. A hallway that is 5 ft (60 inches) in width comfortably allows for the passage of two people. As a side note, the width of a typical wheelchair is 22 inches.
Length is 3/4 of 36 ie 27 ft, width is 9 ft
5 and 10
Residential building codes vary substantially from municipality to municipality and should be checked locally, but at minimum a hallway width should be no less than 36 inches.
48 inches
A high school hallway is crowded.
You would need 16 tile to go across the width of the hallway.