panjang busur =
panjang 2 jari² = 28 + 28 = 56
jd keliling bangun = 58,67 + 56 = 114,67
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panjang busur =
panjang 2 jari² = 28 + 28 = 56
jd keliling bangun = 58,67 + 56 = 114,67