Š¿Žšƒ‚ƒoƒCƒ‹ƒQ[ƒ€
Žc”O
circumference =
1. –ñ
2. Žü
3. α
4. –]

ƒŒƒxƒ‹4. •ÏX
SDAL“‡‰pŒêŠwZ