about 61 minutes apart.
The plane collisions were approximately 16 minutes apart.
A pentagon has 5 sides.
6in
There were four. Two were flown into the World Trade Center towers, one into the Pentagon, and one crashed into a Pennsylvanian field when a number of the passengers bravely overcame the hijackers and prevented the plane also crashing into another target, probably the White House, and causing a much greater loss of life.
A pentagon has 5 sides
the pentagon is 1.9 billion dollars to make
A pentagon is a 5 sided polygon
It is free to visit the Pentagon but the tours must be booked in advance. You can request a tour of the building by accessing the Pentagon website and searching for Pentagon tours.
A pentagon need not have any vertical lines. It can have at most two.
The 5 angles in a pentagon add up to 540 degrees
none
six