Manual of cardboard construction for third, fourth, and fifth grades (1902)
Kunou, C. A. (Charles A.) · Los Angeles : Los Angeles City Public Schools · leaf 69
s % from each side of outside square and drawoblique lines to angles of inside square, as shown indrawing. Draw triangles A, B, C, D, % altitude. Note points ofconnection. Cut out figure following the full outline. Score on dashed lines in the corners and on the lines ofinner square. Fold sides… … 64
Paper work
Internet Archive · California Digital Library · Public Domain Mark 1.0. Free to use for anything.
![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-242-433.webp)
