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What Is A Graphometer?

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The graphometer, semicircle or semicircumferentor is a surveying INSTRUMENT used for ANGLE measurements. It consists of a semicircular limb divided into 180 DEGREES and SOMETIMES subdivided into minutes. The limb is SUBTENDED by the diameter with two sights at its ends.

The graphometer, semicircle or semicircumferentor is a surveying instrument used for angle measurements. It consists of a semicircular limb divided into 180 degrees and sometimes subdivided into minutes. The limb is subtended by the diameter with two sights at its ends.



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