Jawab:
Penjelasan dengan langkah-langkah:
A) Nilai A = 3a + 50 + a + 10 = 90°
= 4a + 60 = 90°
4a = 30°
a = 7.5°
B) AOC = 7.5 + 10
= 17.5°
C) BOC = 3(7.5) + 50
= 72.5°
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Jawab:
Penjelasan dengan langkah-langkah:
A) Nilai A = 3a + 50 + a + 10 = 90°
= 4a + 60 = 90°
4a = 30°
a = 7.5°
B) AOC = 7.5 + 10
= 17.5°
C) BOC = 3(7.5) + 50
= 72.5°