gōu​chǐ

carpenter's square

gōu​chǐ carpenter's square

  1. shorter leg
    the shorter of the two sides containing the right angle in a right-angled triangle (in ancient Chinese mathematics)
  2. ruler
    a ruler or tape-measure; a ruler-like tool or object used for drawing or measuring

gōu​chǐ metal foot-measure

  1. hook
    a hook or hook-shaped object
  2. ruler
    a ruler or tape-measure; a ruler-like tool or object used for drawing or measuring