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A polyptych (/ ˈ p ɒ l ɪ p t ɪ k / POL-ip-tik; Greek: poly-"many" and ptychē "fold") is a work of art (usually a panel painting) which is divided into sections, or panels. Some definitions restrict "polyptych" to works with more than three sections: [ 1 ] a diptych is a two-part work of art; a triptych is a three-part work; a tetraptych or ...
However, there are three distinct ways of partitioning a square into three similar rectangles: [1] [2] The trivial solution given by three congruent rectangles with aspect ratio 3:1. The solution in which two of the three rectangles are congruent and the third one has twice the side length of the other two, where the rectangles have aspect ...
The proof of the correctness of this construction is fairly intuitive, relying on the symmetry of the problem. The trisection of an angle (dividing it into three equal parts) cannot be achieved with the compass and ruler alone (this was first proved by Pierre Wantzel). The internal and external bisectors of an angle are perpendicular.
The plane may be in the center of the body and divide it into two equal parts (mid-sagittal), or away from the midline and divide it into unequal parts (para-sagittal). The term sagittal was coined by Gerard of Cremona. [2]
party per cross or quarterly (divided into four quarters) party per chevron (after the manner of a chevron) party per pall (divided into three parts in a Y shape) (In the above "left" and "right" are from the viewer's perspective, whereas the heraldic terms "sinister" and "dexter" are from the perspective of the person carrying the shield.)
Bicameralism is a type of legislature that is divided into two separate assemblies, chambers, or houses, known as a bicameral legislature.Bicameralism is distinguished from unicameralism, in which all members deliberate and vote as a single group.
mutually exclusive: nothing can belong simultaneously to both parts. If there is a concept A, and it is split into parts B and not-B, then the parts form a dichotomy: they are mutually exclusive, since no part of B is contained in not-B and vice versa, and they are jointly exhaustive, since they cover all of A, and together again give A.
A circle can be divided into sectors which rearrange to form an approximate parallelogram Main article: Area of a circle The formula for the area of a circle (more properly called the area enclosed by a circle or the area of a disk ) is based on a similar method.