Drawing Lines using Triangle at Angles in Multiples of 15 degrees

| View Cart ⇗ | Info

The 45-degree triangle can be used to make a line at a multiple of 15 degrees.


French, Thomas E A Manual of Engineering Drawing for Students and Draftsmen (New York, NY: McGraw-Hill, 1911)


TIFF (full resolution)

2400×1664, 224.2 KiB

Large GIF

1024×709, 38.4 KiB

Medium GIF

640×443, 21.3 KiB

Small GIF

320×221, 8.9 KiB