Elements of geometry : containing the first six books of Euclid, with a supplement on the quadrature of the circle, and the geometry of solids : to which are added, Elements of plane and spherical geometry (1826)
Playfair, John, 1748-1819, Euclid · Philadelphia : Marot & Walter · leaf 32
. andDCEthe given rectilineal angle; it is required to make an angle atthe given point A in the givenstraight line AB, that shall beequal to the given rectilinea,!angle DCE. Take in CD, CE any pointsD,.E, and join DE: and make(22. 1.) the triangle AFG,the sides of which shall beequal to the three… … $2 ELEMENTS FAG= Therefore, at the given point A in the ^iven straight line AB^the angle FAG is made equal to the given rectilineal angle DCE,Which was to be done. y PROP. XXIT. THEOR. If two triangles have two sides of the one equal to twosides of the other^ each to each, but the angle containedby…
Euclid's Elements · Geometry · Trigonometry
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![An illustration from Divina proportione : opera a tutti glingegni perspicaci e curiosi necessaria oue ciascun studioso di philosophia: prospettiua pictura sculptura: architectura: musica: e altre mathematice: suavissima: sotile: e admirabile doctrina consequira: e delecterassi: co[n] varie questione de secretissima scientia (1509)](https://img.insideoutlibrary.com/img/200/ia-divinaproportion00paci-86-131.webp)
