A geometric compass is a mathematical tool used to calculate the distance between. The hinge is set in such a way that the distance between the spikes on the map represents a certain distance in reality, and by measuring how many times the compasses fit between two points on the map the distance between those points can be calculated. Part of the series: Mathematics & Science. The radius of the circle can be adjusted by changing the angle of the hinge.ĭistances can be measured on a map using compasses with two spikes, also called a dividing compass. Today these facilities are more often provided by computer-aided design programs, so the physical tools serve mainly a didactic purpose in teaching geometry, technical drawing, etc.Ĭircles can be made by fastening one leg of the compasses into the paper with the spike, putting the pencil on the paper, and moving the pencil around while keeping the hinge on the same angle. Order) 71.60/Carton (Shipping) CN Ningbo Yongwang Stationery Factory 10 YRS 5. By the mid-twentieth century, circle templates supplemented the use of compasses. 7Pcs Geometry Set Geometry Compass Sets, Math Kit Educational Supplies Drawing Compass and Protractor Set, Pencil Lead Refills Ready to Ship 130.00/ Carton 50 Cartons (Min. Compasses can be used for mathematics, drafting, navigation and other purposes.īefore computerization, compasses and other tools for manual drafting were often packaged as a “bow set” with interchangeable parts. As dividers, they can also be used as tools to measure distances, in particular on maps. A pair of compasses, also known as a compass, is a technical drawing instrument that can be used for inscribing circles or arcs.
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