1.Prawda, bo 2a = a x 2, a < a + 20°2.Fałsz 32° = a, 64° = 2a, 84° ≠ a + 20°
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1.Prawda, bo 2a = a x 2, a < a + 20°
2.Fałsz 32° = a, 64° = 2a, 84° ≠ a + 20°