Jawab:
Penjelasan dengan langkah-langkah:
180° = A+B+C
180° = A + 25+A + 5 + 3A
180° = 5A + 30
180-30 = 5A
150 = 5A
A=30°
Sudut A = 30°
Sudut B = 25+30 = 55°
Sudut C = 3×30+5 = 95°
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Jawab:
Penjelasan dengan langkah-langkah:
180° = A+B+C
180° = A + 25+A + 5 + 3A
180° = 5A + 30
180-30 = 5A
150 = 5A
A=30°
Sudut A = 30°
Sudut B = 25+30 = 55°
Sudut C = 3×30+5 = 95°