Š¿Žšƒ‚ƒoƒCƒ‹ƒQ[ƒ€
Žc”O
angle or corner =
1. ‰ï
2. •ª
3. Šp
4. ‰H

ƒŒƒxƒ‹2. •ύX
SDAL“‡‰pŒêŠwZ