Definition of spherical triangle in English:

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spherical triangle

Pronunciation: /ˈsfi(ə)rəkəl/ Pronunciation: /ˈsferəkəl ˈtrīˌaNGɡəl/


A triangle formed by three arcs of great circles on a sphere.
Example sentences
  • In Book I of Sphaerica he set up the basis for treating spherical triangles as Euclid treated plane triangles.
  • The work contains formulas for right-handed triangles, the general law of sines, and the solution of a spherical triangle by means of the polar triangle.
  • His tables for solving the problems of spherical astronomy can be seen to be tables which solve spherical triangles using a method similar to the modern cosine rule.

For editors and proofreaders

Syllabification: spher·i·cal tri·an·gle

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