Nilai x adalah B. 30°
Jumlah sudut siku-siku = 90°
35° + (2x - 5°) = 90°
35 + 2x - 5 = 90
30 + 2x = 90
2x = 90 - 30
2x = 60
x = 60/2
x = 30°
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Nilai x adalah B. 30°
Langkah langkah
Jumlah sudut siku-siku = 90°
35° + (2x - 5°) = 90°
35 + 2x - 5 = 90
30 + 2x = 90
2x = 90 - 30
2x = 60
x = 60/2
x = 30°