Jawab:
Penjelasan dengan langkah-langkah:
5a.
5x + 125° = 180° sifat sudut pelurus
5x = 180° - 125°
5x = 55°
x = 55°/5
x = 11°
5b.
2x + 10° + 30° = 180° sifat sudut pelurus
2x + 40° = 180°
2x = 180° - 40°
2x = 140°
x = 140°/2
x = 70°
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Jawab:
Penjelasan dengan langkah-langkah:
5a.
5x + 125° = 180° sifat sudut pelurus
5x = 180° - 125°
5x = 55°
x = 55°/5
x = 11°
5b.
2x + 10° + 30° = 180° sifat sudut pelurus
2x + 40° = 180°
2x = 180° - 40°
2x = 140°
x = 140°/2
x = 70°