tolong dijawab pakai cara (5y + 10°) + (2y + 6°) + (11y - 2°) = 180°
Matematika
adinda499
Pertanyaan
tolong dijawab pakai cara (5y + 10°) + (2y + 6°) + (11y - 2°) = 180°
2 Jawaban
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1. Jawaban achot
(5y + 10°) + (2y + 6°) + (11y - 2°) = 180°
= (5y+2y+11y)°+(10+6-2)° =180°
= 18y°+14° = 180°
= 18y° = 180° - 14°
= 18y° = 166°
= y = 166/18
= y = 9,2° -
2. Jawaban zai3n
5y + 10 +2y + 6 + 11y - 2 = 180°
18y + 14 = 180
18y = 180 - 14
18y = 166
y = 166/18= 9,666