DOI Seite / Zitierlink:
https://doi.org/10.11588/diglit.62828#0099
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lineal figure; but when its fides and ends are formed of unequal
curved and unequal right lines, then they are called irregular
compound mixtilineal figures.
) . •
Of this fort is No. 18.
Of Polygonal Figures.
All Figures bounded by more than four right lines are
termed Polygons.
The figures included between No. 19 and 26 are all of
this denomination. But each of thefe figures has its parti-
cular name from the number of the fides of which it is com-
pofed.
No. 19, is therefore called a regular Pentagon -, becaufe it
is bound by five right lines of equal length ; but if any of thofe
lines were unequal in length, then it would be termed an irre-
gular Pentagon. The fame diftindion is applicable to any other
of thefe figures in fuch cafes.
♦
* Pentagon, from ttsi-Ie, pente, five, and yow, goma, a five-cornered figure. The other
Polygons have all their particular names formed in the fame way, from the Greek numeral
adjectives.
G No.
lineal figure; but when its fides and ends are formed of unequal
curved and unequal right lines, then they are called irregular
compound mixtilineal figures.
) . •
Of this fort is No. 18.
Of Polygonal Figures.
All Figures bounded by more than four right lines are
termed Polygons.
The figures included between No. 19 and 26 are all of
this denomination. But each of thefe figures has its parti-
cular name from the number of the fides of which it is com-
pofed.
No. 19, is therefore called a regular Pentagon -, becaufe it
is bound by five right lines of equal length ; but if any of thofe
lines were unequal in length, then it would be termed an irre-
gular Pentagon. The fame diftindion is applicable to any other
of thefe figures in fuch cafes.
♦
* Pentagon, from ttsi-Ie, pente, five, and yow, goma, a five-cornered figure. The other
Polygons have all their particular names formed in the fame way, from the Greek numeral
adjectives.
G No.