A square pyramid is a polygon that has a square base and four triangular sides. A real life example is the Great Pyramid of Giza in Egypt.
Real life is a real life example!
A stop sign....... they are just about every where you go P.S. a hexagon is a six sided polygon (did you attend kindergarten?)
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.
A pennant is a real life example of an isosceles triangle.
I'm not sure what you're asking. A nonagon is a nine-sided polygon. Are you looking for a real-life example of one? I can't really think of an ordinary example. Hexagons are much more common.
what is a real life example of limited government
Cytpolasm is an example of cytoplasm in real life: it does exist.
There are actually quite a few real life examples of a midpoint. The Equator is an example of a midpoint.