Penjelasan dengan langkah-langkah:
3a + 2a + 35 = 180°
5a = 180-35°
5a = 145°
a = 29°
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Penjelasan dengan langkah-langkah:
3a + 2a + 35 = 180°
5a = 180-35°
5a = 145°
a = 29°