Science and art drawing : complete geometrical course ; consisting of plane and solid geometry, orthographic and isometric projection, projection of shadow's the principles of map projection, graphic arithmetic and graphic statics (1895)
Spanton, J. Humphrey (John Humphrey) · London : Macmillan · leaf 113
Tm. 203. Peoblem 125. To construct a rhoniboid equcd inarea to a given triangle ABC,V^ and having one of its angles equcd to given angle D. Bisect the line AB in E (Prob.1). From point C draw the lineCK parallel to AB (Prob. 4).At E construct the angle BEHequal to the given angle D (Prob.12). From… … Fig. 204. Problem 126. To divide a given triangle • ABCinto any numhcr of equalparts, for example five. Divide any side of the tri-angle into five equal parts (Prob.10), and draw lines to theopposite angle. We have nowfive triangles, and as they haveequal bases and equal altitudes,they must all be…
Geometrical drawing
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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-84-119.webp)
