The compleat surveyor containing the whole art of surveying of land by the plain table, theodolite, circumferentor, and peractor ... : together with the taking of all manner of heights and distances, either by William Leybourn.
About this Item
Title
The compleat surveyor containing the whole art of surveying of land by the plain table, theodolite, circumferentor, and peractor ... : together with the taking of all manner of heights and distances, either by William Leybourn.
Author
Leybourn, William, 1626-1716.
Publication
London :: Printed by R. & W. Leybourn, for E. Brewster and G. Sawbridge ...,
1653.
Rights/Permissions
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Subject terms
Surveying -- Early works to 1800.
Link to this Item
http://name.umdl.umich.edu/A48331.0001.001
Cite this Item
"The compleat surveyor containing the whole art of surveying of land by the plain table, theodolite, circumferentor, and peractor ... : together with the taking of all manner of heights and distances, either by William Leybourn." In the digital collection Early English Books Online 2. https://name.umdl.umich.edu/A48331.0001.001. University of Michigan Library Digital Collections. Accessed June 15, 2025.
Pages
descriptionPage 253
4. Having the Base and perpendicular of a Tri∣angle given
in Perches, to finde the content in Acres.
As 320, to the Perpendicular;
So the length of the Base, to the content in
Acres.
So in the Triangle LAB, if the line BD be taken for the
per∣pendicular of the Triangle, then the length of the base being 50 perches,
and the perpendicular 36 2/5, the area will be found to be 5 Acres 22 parts,
which is 2 Roods 30 perches, then,
If you extend the Compasses from 320 to 36 2/5 the
perpendicular, the same extent will reach from 50 the length of the base,
to 5 Acres 22 parts.
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