Jawab:60 °
Penjelasan 120 × 2 (karena sudut berhadapan sama = 240
360 (besar sudut penuh) -240 = 120 : 2 = 60
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Jawab:60 °
Penjelasan 120 × 2 (karena sudut berhadapan sama = 240
360 (besar sudut penuh) -240 = 120 : 2 = 60