Weaver, Emily A. [from old catalog] · Springfield, Mass., M. Bradley company · leaf 36
Fig 79. Fig. 79.—Arrange four trapeziums with the acute anglesmeeting at the center. PAPER AND SCISSORS IN THE SCHOOLROOM. 3 … Fig. So. ¥\^. 80.—Another ornamental form is made of eight trape-ziums arranged with their pointed ends to the center, forming asolid figure. Sequence F.—is developed by the use of the rhombusworked out in standard blue color. Compare the rhombus withthose forms previously studied.
Paper work
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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-48-64.webp)
