Š¿Žšƒ‚ƒoƒCƒ‹ƒQ[ƒ€
Žc”O
angle or corner =
1. ì
2. ‘g
3.
4. Šp

ƒŒƒxƒ‹2. •ÏX
SDAL“‡‰pŒêŠwZ