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18-gon with 144 rhombs An equilateral pentagonal dissection, with sequential internal angles: 60°, 160°, 80°, 100°, and 140°.Each of the 24 pentagons can be seen as the union of an equilateral triangle and an 80° rhombus.
sella–nasion–A point angle: SNA or S-N-A: Average of 82 degrees with +/- of 2 degrees sella–nasion–B point angle: SNB or S-N-B: Average of 80 degrees with +/- of 2 degrees sublabialis: Sl: subnasale (synonyms, subnasal or subnasion) Sn: In the midline, the junction where base of the columella of the nose meets the upper lip stomion ...
The sum of any icositetragon's interior angles is 3960 degrees. Regular icositetragon The ... Dissection. 24-gon with 264 rhombs regular Isotoxal
Only the g10 subgroup has no degrees of freedom but can be seen as directed edges. The highest symmetry irregular decagons are d10 , an isogonal decagon constructed by five mirrors which can alternate long and short edges, and p10 , an isotoxal decagon, constructed with equal edge lengths, but vertices alternating two different internal angles.
A degree (in full, a degree of arc, arc degree, or arcdegree), usually denoted by ° (the degree symbol), is a measurement of a plane angle in which one full rotation is 360 degrees. [4] It is not an SI unit—the SI unit of angular measure is the radian—but it is mentioned in the SI brochure as an accepted unit. [5]
The 80th parallel north is a circle of latitude that is 80 degrees north of the Earth's equatorial plane, and 10 degrees (690 miles / 1100 kilometers) south of the North Pole, in the Arctic. It crosses the Atlantic Ocean , Europe , Asia , the Arctic Ocean , and North America .
The 90-degree complement to the angle of incidence is called the grazing angle or glancing angle. Incidence at small grazing angles is called "grazing incidence." [citation needed] Grazing incidence diffraction is used in X-ray spectroscopy and atom optics, where significant reflection can be achieved only at small values of the grazing angle.
In mechanical engineering, the thread angle of a screw is the included angle between the thread flanks, measured in a plane containing the thread axis. [1] This is a defining factor for the shape of a screw thread .