Jawablah pertanyaan dengan benar
Jawaban:
B.34°
Penjelasan dengan langkah-langkah:
<BOC ≈ <AOB + <EOF = 180°
<BOC ≈ (3x + 20)° + (2x + 10)° = 180°
<BOC ≈ 3x + 2x + 20° - 10° = 180°
<BOC ≈ 5x + 10° = 180°
<BOC ≈ 5x = 180° - 10°
<BOC ≈ 5x = 170°
<BOC ≈ x = 170/5
<BOC ≈ x = 34°
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