Jawaban:α = 78°β = 52°Penjelasan:Diketahui:→ Sudut 50°→ α = 3a→ β = 2a∵ 50 + α + β berpelurus∴ 50 + 3a + 2a = 180°maka3a+2a = 180-505a = 130a = 130÷5a = 26--------------------------------Yg ditanya:α dan βCari besarα = 3a = 3×26 = 78°β = 2a = 2×26 = 52°- xcvi -
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Jawaban:
α = 78°
β = 52°
Penjelasan:
Diketahui:
→ Sudut 50°
→ α = 3a
→ β = 2a
∵ 50 + α + β berpelurus
∴ 50 + 3a + 2a = 180°
maka
3a+2a = 180-50
5a = 130
a = 130÷5
a = 26
--------------------------------
Yg ditanya:
α dan β
Cari besar
α = 3a = 3×26 = 78°
β = 2a = 2×26 = 52°
- xcvi -