Penjelasan dengan langkah-langkah:
r² = (3 - 1)² + (4 - 6)² + (2 - 3)²
= 4 + 4 + 1
= 9
r = 3
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Penjelasan dengan langkah-langkah:
r² = (3 - 1)² + (4 - 6)² + (2 - 3)²
= 4 + 4 + 1
= 9
r = 3