Š¿Žšƒ‚ƒoƒCƒ‹ƒQ[ƒ€
Žc”O
angle or corner =
1. –ˆ
2. –œ
3. Šp
4. S

ƒŒƒxƒ‹2. •ÏX
SDAL“‡‰pŒêŠwZ