Š¿Žšƒ‚ƒoƒCƒ‹ƒQ[ƒ€
Žc”O
angle or corner =
1. ¡
2. Šˆ
3. “¹
4. Šp

ƒŒƒxƒ‹2. •ύX
SDAL“‡‰pŒêŠwZ