Š¿Žšƒ‚ƒoƒCƒ‹ƒQ[ƒ€
Žc”O
angle or corner =
1.
2.
‰Ì
3.
Šp
4.
‘g
ƒŒƒxƒ‹2.
•ÏX
SDAL“‡‰pŒêŠwZ