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5544 = r²
4. 22/7
r² = 441
r = √441
r = 21
karena d=2r jadi d=42
2. L1 : L2 = 9 : 4
5544 = r²
4. 22/7
r² = 441
r = √441
r = 21
karena d=2r jadi d=42
2. L1 : L2 = 9 : 4