Keliling lingkaran = 62,28 cm
phi = 3,14
keliling = 2xphixR
62,28 = 2x3,14xR
62,28 = 6,28R
R (jari-jari) = 62,28/6,28 = 9,91 CM
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Keliling lingkaran = 62,28 cm
phi = 3,14
keliling = 2xphixR
62,28 = 2x3,14xR
62,28 = 6,28R
R (jari-jari) = 62,28/6,28 = 9,91 CM