Mr. Przybilla's tops also come in clusters of 6 (an octahedron, with 8 triangular faces when the imaginary dots are connected), 12 (an icosahedron, with 20 faces) and 13 (a cube octahedron, which despite its extra ball has only 14 faces).
For the analysis presented in this work, the spatial resolution of the strip-like panels is ten triangular faces per stretching meter.
Triangular Prisms : Volume = 1/2bh1 × l, where "b" is the length of the base of one of the triangular faces, "h1" is its height, and "l" is the length of the prism.
I chose "triangular face".
He brought his broad, rough, triangular face into close range.
Three, the tetrahedron, octahedron and icosahedron, have triangular faces.
Triangular face, or mask, dangling a spinal cord.
He has the gaunt, triangular face of a wartime goner, and round-framed glasses.
Nesbø, who is fifty-four, has a long, small-boned, triangular face.
He has a thin triangular face, tightly coiled hair, and a prominent, beaky nose.
Test-taker Daniel Lowen observed, however, that the answer really should be five, because the two pairs of adjacent triangular faces in the combined solid are actually coplanar, and therefore make two rhombus-shaped faces rather than four triangular faces.
