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