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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 ]
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In trigonometry, the gradian – also known as the gon (from Ancient Greek γωνία (gōnía) 'angle'), grad, or grade [1] – is a unit of measurement of an angle, defined as one-hundredth of the right angle; in other words, 100 gradians is equal to 90 degrees.
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Visual angle is the angle a viewed object subtends at the eye, usually stated in degrees of arc. It also is called the object's angular size . The diagram on the right shows an observer's eye looking at a frontal extent (the vertical arrow) that has a linear size S {\displaystyle S} , located in the distance D {\displaystyle D} from point O ...
In the military of ancient Rome, wreaths were among the traditional Roman military decorations; as a result of the revival in ancient artistic and literary models in the Renaissance they are frequently encountered in Western art and heraldry. Wreaths of leaves from laurel, olive, oak, myrtle, and celery were particularly symbolically ...
An actress performing a play. She wears an ivy wreath and stands in front of a statue of a woman from the Mausoleum at Halicarnassus (room 21, The British Museum, London) In some countries, the laurel wreath is used as a symbol of the master's degree. The wreath is given to young masters at the university graduation ceremony.