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a. K = 2πR
= 2. 22/7. 14
= 88 cm
b. Panjang Tali busur AB (didpn sdt 60) =
AB = Cm
c. L =πR²
= 22/7. 14. 14
= 616 cm²
d. Luas Jurung AB (didpn sdt 60) =
L AB =