Jawaban:
66°
Penjelasan dengan langkah-langkah:
ADB = 180°
ADC + BDC = 180°
3x + 2x -10 = 180
5x - 10 = 180
5x = 190
x = 38°
sudut BDC = 2x -10
= 2(38) -10
= 76-10
= 66
besar sudut BDC adalah 66°
semoga membantu..
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Jawaban:
66°
Penjelasan dengan langkah-langkah:
ADB = 180°
ADC + BDC = 180°
3x + 2x -10 = 180
5x - 10 = 180
5x = 190
x = 38°
sudut BDC = 2x -10
= 2(38) -10
= 76-10
= 66
besar sudut BDC adalah 66°
semoga membantu..