Philosophical instructor, or, Webster's elements of natural philosophy : subdivided into principles and illustrations ; intended for academies, medical schools, and the popular class-room (1824)
Eaton, Amos, 1776-1842, Webster, John, fl. 1804-1824 · Albany : Printed by Websters and Skinners ... · leaf 17
equalsides, all meeting at right angles. 6. Parallelogram, same as a square,excepting that the opposite sides onlyare equal. 7. Rhomb, either of the two lastfigures, racked out of square. 8. Superficies, having length andbreadth, without any thickness. 9. Solid, having length, breadth andthickness.… … / 13. Triangle, a figure bounded by threedes. If there is one rigis a right angled triangle. sides. If there is one right angle in three ^s\ it, it ^/^ I 14. Obtuse angled triangle has one obtuse angle. 15. Acute angled triangle, has all threeof the angles acute. 16. Degrees of a circle, are 360 ;…
Physics
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