a piece of paper
a sheet of paper
Real life is a real life example!
In building construction, you usually have one horizontal plane (that floors) that is intersected by a vertical plane (the walls or support beams).
a Television is a real life example of a Cube A dice is a real life example of a cube
I real life example of a vertex would be a corner of an object like a box.
The Military
a sheet of paper
doesn't exist in reality
A Ramp, a screw thread.
two planes next to each other
A Spy Plane is an example of Acute Triangle.... >> njoy
Real life is a real life example!
In building construction, you usually have one horizontal plane (that floors) that is intersected by a vertical plane (the walls or support beams).
a Television is a real life example of a Cube A dice is a real life example of a cube
a real life example of an octagon is a stop sign.
A real life example of a cliff are the white cliffs of Dover.
A real life example is the chloroplasts found in plant cells.