Volume 1

Scientific dialogues ... for the instruction ... of young people / [Jeremiah Joyce].

  • Jeremiah Joyce
Date:
1803-1809
Catalogue details

Licence: Public Domain Mark

Credit: Scientific dialogues ... for the instruction ... of young people / [Jeremiah Joyce]. Source: Wellcome Collection.

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    underftood. The word angle is con- tinually recurring in fubje&s of this fort, do you know what an angle is ? Emma. I do not think I do ; will you explain what it means? Father. An angle is made by the opening Of two ftraight* lines. In this figure (Plate 1. Fig. 1.) there are two ftraight lines An and cb meeting at the point b, and the open- ing made by them is called an angle. Charles. Whether that opening be linall or great, is it ftill called an angle ? Father. It is; your drawing com- panies may familiarize to your mind the idea of an angle; the lines in this fi gurfe will aptly reprefent the legs of the compaffes, and the point * Straight lines, in works of fciencc, are nfually denominated right lines, II 3
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