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 125
Peoblem 144. On a given line AB, to drato atriangle equal in area to agiven triangle CDE. In the given triangle CDEdraw the line EF perpendicularto CD (Prob. 5). Find the fourthproportional AH to the lines AB,CD, and EF (Prob. 113). Atany point on the line AB, set upKL equal to AH, and… … Problem 145. To construet an equilateral triangle equal in area to a giventriangle ABC. On one side of the given triangle, CB for example, construct PROPORTIONAL AND EQUIVALENT AREAS 105 an equilateral triangle CBD (Prob.16). From the point A drawthe line AE parallel to CB till itmeets CD produced…
Geometrical drawing
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