Extract from Stereometry; or the Art of GAUGING made easie, by the Help of a Sliding-Rule by Tho. Everard (1727) pp 51-xx

SECT. III.
To measure Quadrangular Figures.

Problem V.

In any right-angled Parallelogram, be it Square or Oblong; The Product of any two Sides, including one and the same Angle, is equal to the Area or Content.

1. Example.

In Fig. 5. ...
 


[More to follow]

Next page
Return to index

This page was last updated on 29 March 2000.