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单词 segment of a circle
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segment of a circle
a. Geometry. A plane figure contained by a right line and a portion of the circumference of a circle. In full segment of a circle. Also, see quot. 1728.In quot. a1631 loosely used for arc.
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the world > relative properties > number > geometry > shape or figure > [noun] > two-dimensional > figure forming part of circle
nook cantle1551
quadrate1551
quadrant1559
section1570
sector1570
segment1570
sextant1628
half-round1718
octant1753
1570 H. Billingsley tr. Euclid Elements Geom. iii. f. 81v A section or segment of a circle, is a figure comprehended vnder a right line and a portion of the circumference of a circle.
a1631 J. Donne Serm. (1954) VII. 244 The earth it selfe being round, every step wee make upon it, must necessarily bee a segment, an arch of a circle.
1728 E. Chambers Cycl. (at cited word) Segment is also applied by Extension, to Ellipses and other Curvilinear Figures.
1806 C. Hutton Course Math. (ed. 5) I. 42 To find the Area of any Elliptic Segment. Find the area of a corresponding circular segment.
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