The US "Pentagon" building is an example of their use.
They do not necessarily have pentagons. See for example, the brazuca, the official football design for the 2014 World Cup.
12
Yes providing that they are regular 5 sided pentagons otherwise no if they are irregular pentagons
no - parallelograms have four sides; pentagons have five.
They have a few pentagons on it.
There is no standard. The 2014 World Cup in Rio, for example, used the Adidas Brazuca which has no pentagons nor hexagons.
They do not necessarily have pentagons. See for example, the brazuca, the official football design for the 2014 World Cup.
12
well you have to get in bed ND THEY COME IN REAL LIFE HAYHAYHAY
5 rectangles and two pentagons
No, pentagons to not have right angles.
Yes providing that they are regular 5 sided pentagons otherwise no if they are irregular pentagons
The Pentagon
Not if they are regular 5 sided pentagons
no - parallelograms have four sides; pentagons have five.
Not sure about a bodecahedron, but a dodecahedron has 12.
They have a few pentagons on it.