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