- an
isosceles triangle as one with at
least two
equal sides. The
latter definition would make all
equilateral triangles isosceles triangles. The 45–45–90...
-
Euclidean triangle can have more than one
obtuse angle.
Acute and
obtuse triangles are the two
different types of
oblique triangles —
triangles that are...
-
mathematical study of
isosceles triangles dates back to
ancient Egyptian mathematics and
Babylonian mathematics.
Isosceles triangles have been used as decoration...
- semi-regular
tessellations constructed with
equilateral triangles. In
three dimensions,
equilateral triangles form
faces of
regular and
uniform polyhedra. Three...
- Cohen-Gadol AA (2011). "Three
nearly forgotten anatomical triangles of the neck:
triangles of Beclard,
Lesser and
Pirogoff and
their potential applications...
- a+b+c=r+r_{a}+r_{b}+r_{c}.}
Acute and
obtuse triangles (oblique
triangles)
Spiral of
Theodorus Di Domenico,
Angelo S., "A
property of
triangles involving area", Mathematical...
- that are not Euclidean, to
objects that are not
right triangles, and to
objects that are not
triangles at all but n-dimensional solids. The
Pythagorean theorem...
-
regular hexagon can be
partitioned into six
equilateral triangles. Like
squares and
equilateral triangles,
regular hexagons fit
together without any gaps to...
-
lumbar triangle can
refer to
either the
inferior lumbar (Petit)
triangle,
which lies superficially, or the
superior lumbar (Grynfeltt)
triangle, which...
- ****
concentration camp badges,
primarily triangles, were part of the
system of
identification in
German camps. They were used in the
concentration camps...