Besar sudut AOC adalah 135°
Penjelasan dengan langkah-langkah:
(5a + 60)° + 3a° = 180°
8a° + 60° = 180°
8a° = 180° - 60°
8a° = 120°
a = 120/8
a = 15
AOC = (5a + 60)°
= (5(15) + 60)°
= (75 + 60)°
= 135°
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Besar sudut AOC adalah 135°
Penjelasan dengan langkah-langkah:
(5a + 60)° + 3a° = 180°
8a° + 60° = 180°
8a° = 180° - 60°
8a° = 120°
a = 120/8
a = 15
AOC = (5a + 60)°
= (5(15) + 60)°
= (75 + 60)°
= 135°