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Verified answer
Luas Lingkaran = 22 / 7 × 21 × 21 = 9702 / 7 = 1386 dm2Verified answer
1/4 kali 22/7 kali 42 kali 42=1/4 * 22/7 *1.764=1*22*1.764/28= 1386 dm persegimaaf ya klo salah
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