some are 4 feet, some are 19 feet!
Well, isn't that a happy little question! Blackboards come in all different sizes, so there's no one answer to that. Some blackboards might be a few feet wide, while others could be much larger. Just remember, it's not about the size of the blackboard, it's about the creativity you bring to it.
Length = 38 feet Width = 19 feet Check: 2*(38+19) = 114 feet
19 feet
The largest was over 19 feet long.
Depends, 19 feet plus or minus
Taller than me....
The record is around 19 feet, but 8-12 feet is more common.
To cast a 19 foot shadow the building would have to be 26.91 feet tall. Each foot of building/tree casts 8.47 inches of shadow.
yes it is
Feet is the plural term for foot. So 19 feet = 19 feet.
3 feet by 19 feet = 3 * 19 = 57 square feet.