## triangles

Noun

- plural form of
*triangle*

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- If the faces be all equal equilateral
**triangles**the solid is termed the "regular" tetrahedron. - "Napier's rules of circular parts," which include the complete system of formulae for the solution of right-angled
**triangles**, may be enunciated as follows. - If there were such a thing as a triangle contained by absolutely straight lines, its three angles would no doubt measure what Euclid says; but straight lines and true
**triangles**nowhere exist in reruns natura. - The arc measured was 3° 7' 3" in length; and the work consisted of two measured bases connected by a series of
**triangles**, one north and the other south of the equator, on the meridian of Quito. - Contains problems of finding rational right-angled
**triangles**such that different functions of their parts (the sides and the area) are squares.

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