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Pentagramma mirificum (Latin for "miraculous pentagram") is a star polygon on a sphere, composed of five great circle arcs, all of whose internal angles are right angles.
A pentagram can be drawn as a star polygon on a sphere, composed of five great circle arcs, whose all internal angles are right angles. This shape was described by John Napier in his 1614 book Mirifici logarithmorum canonis descriptio (Description of the wonderful rule of logarithms) along with rules that link the values of trigonometric ...
The parametric angle 𝛼 (in degrees or radians) can be chosen to match internal angles of neighboring polygons in a tessellation pattern. In his 1619 work Harmonices Mundi , among periodic tilings, Johannes Kepler includes nonperiodic tilings, like that with three regular pentagons and one regular star pentagon fitting around certain vertices ...
Director Geeta Gandbhir’s ironically titled “The Perfect Neighbor” focuses on the shocking case of one such grouch, Florida woman Susan Lorincz, who went all Clint Eastwood on a trespasser.
In geometry, a pentagon (from Greek πέντε (pente) ' five ' and γωνία (gonia) ' angle ' [1]) is any five-sided polygon or 5-gon. The sum of the internal 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.
A diagram of a typical nautical sextant, a tool used in celestial navigation to measure the angle between two objects viewed by means of its optical sight. Celestial navigation, also known as astronavigation, is the practice of position fixing using stars and other celestial bodies that enables a navigator to accurately determine their actual current physical position in space or on the ...
The Perfect Couple, a 2018 thriller by Elin Hilderbrand, is having quite the moment right now. In case you haven't read the book (or watched the smash-hit, Nicole Kidman-starring series), here's th
The Littlest Angel is an American children's book by Charles Tazewell. It was first published in 1946, illustrated by Katherine Evans. It was reissued with different illustrators in 1962 and 1991. All the versions were published by Children's Press Inc. As of 2001 it was the fifteenth best-selling children's book of all time. [1]