The complete measurer; or, The whole art of measuring .. (1789)
Hawney, William · London : Rivington · leaf 280
afured inSedion 1. of that Chapter. 1. 0/ //^^ T E T R A E D R O N. A Tetraedron is a Solid, con-tained under four equal and equi-lateral Iriangles. Lee A B C 1.) be a Tetraedron,whofe Side is r2 Inches, theperpen Jicalar Height 9798Inches. A. By Se3l. V. Chap. T- the Area of the Trianglewill be… … 62.352 Area of the Triangle. 20.784 one-third Part.9.798 the perpendicular Height. 166272187056145488 187056 203.641632 The
Measurement · Geometry
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