Encyclopædia Britannica 1771–1860
Topic · 1 of 8 editions · peak 180 chars

ACUTE-ANGLED Triangle

1st2nd3rd4th5th6th7th8th
EditionAs printedTypeCharsLocationvs. previous
2nd ed. (1778–83)ACUTE-ANGLED Trianglesub_entry180vol. 1, p. 75