2 suitcases are allowed in an airplane
there is 9 planes of symmetry in a cube
There are 31 planes of existence in Buddhist belief
Two planes intersect at a line. The line where they intersect pertains to both planes. In the same manner, if infinitely many planes intersect each other at the same line, then that line pertains to the infinitely many planes.
it has 5 planes of symmetry
it has 5 planes: the base and 4 sides.
10
You could maybe draw and cut out little planes and suitcases.
No, extension cords are not allowed on planes due to safety regulations.
Yes, CDs are allowed on planes as part of carry-on luggage.
Yes, electric lighters are allowed on planes in carry-on luggage, but not in checked baggage.
No, razor blades are not allowed in carry-on luggage on planes.
The answer depends on the volume of the individual suitcases. Also, because they are rigid, it also depends on the dimensions of the suitcases.
no smoking is allowed on public planes, national and international
No, poppers are not allowed on planes as they are considered a hazardous material and can pose a safety risk during flight.
Yes
No.
Yes.