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Verified answer
Diketahui:r = 42 cm
π = 3,14
Ditanyakan: Keliling lingkaran?
Jawab:
Keliling = 2 × π × r
Keliling = 2 × 3,14 × 42
Keliling = 263,76 cm
Jadi, keliling lapangan yang Anton kelilingi tersebut adalah 263,76 cm