Jawaban:
<B = 48°
Penjelasan dengan langkah-langkah:
<A + <B + <C = 180°
60° + 2x° + 3x° = 180°
60° + 5x° = 180°
5x° = 180° - 60°
5x° = 120°
x° = 120° : 5
x° = 24°
<B = 2x° = 2(24°) = 48°
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Jawaban:
<B = 48°
Penjelasan dengan langkah-langkah:
<A + <B + <C = 180°
60° + 2x° + 3x° = 180°
60° + 5x° = 180°
5x° = 180° - 60°
5x° = 120°
x° = 120° : 5
x° = 24°
<B = 2x° = 2(24°) = 48°