-
angles in a
simple pentagon is 540°. A
pentagon may be
simple or self-intersecting. A self-intersecting
regular pentagon (or star
pentagon) is
called a pentagram...
-
dodecahedron is the
regular dodecahedron with
regular pentagons as faces,
which is a
Platonic solid.
There are also
three regular star dodecahedra, which...
- A
regular dodecahedron or
pentagonal dodecahedron is a
dodecahedron composed of
regular pentagonal faces,
three meeting at each vertex. It is an example...
- star
pentagon) is a
regular five-pointed star polygon,
formed from the
diagonal line
segments of a
convex (or simple, or non-self-intersecting)
regular pentagon...
-
equation of the circle) x2 − sx + p = 0. The
problem of
constructing a
regular pentagon is
equivalent to the
problem of
constructing the
roots of the equation...
- In geometry, a
pentagonal tiling is a
tiling of the
plane where each
individual piece is in the
shape of a
pentagon. A
regular pentagonal tiling on the...
-
constructed as a
truncated pentagon, t{5}, a
quasiregular decagon alternating two
types of edges. The
picture shows a
regular decagon with side
length a...
- the
regular icosahedron (or
simply icosahedron) is a
convex polyhedron that can be
constructed from
pentagonal antiprism by
attaching two
pentagonal pyramids...
- The
Pentagon is the
headquarters building of the
United States Department of Defense, in
Arlington County, Virginia,
across the
Potomac River from Washington...
- in length,
forming equilateral triangular faces and a
regular pentagonal base. The
pentagonal pyramid can be
found in many polyhedrons,
including their...
