[spec] add section on circle mensuration

diff --git a/spec/spec-collated.pdf b/spec/spec-collated.pdf
index 136eeb809f7c4fcef4b1a1c5bedbda99be080459..174123300d682eed2ce36cbdcf45de357ef04085 100644 (file)
Binary files a/spec/spec-collated.pdf and b/spec/spec-collated.pdf differ