It allowed Americans to travel from coast to coast.
The panama Canal.
true
A ship sailing from Hawaii to the East Coast of the United States is likely to use the Panama Canal. Once through the Canal the ship will head to the East Coast.
erie canal
They had to cross the East Coast of the U.S.A to West coast.
A major goal was to link Lake Erie and the other Great Lakes with the Atlantic Coast through a canal.
None. (Well, arguably the interior of Panama itself). Any region "connected" with the US east coast via the canal was already "connected" via the Straits of Magellan. The canal did cut the sailing distance (and therefore the trip time) to the US west coast approximately in half, though.
It facilitated travel and shipping between the east coast and west coast of the United States.
The Suez Canal is very important. It reduces shipping times between Asia and Europe and the east coast of the Americas.
Not sure it would as the need is fulfilled via rail.
Only if your arms are very long.