Om keladi berkata : “GladiatoЯ avatar

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Bagus dong, skalian nglatih skill, jangan ksh soal yg mudh² keenakan"

Tuh soalny dilampiran

Om keladi berkata : “GladiatoЯ avatar

Penyelesaian :

180 = 95 + 3x – 5 + x – 10

180 = 95 – 5 – 10 + 3x + x

180 = 80 + 4x

180 -80 = 4x

100 = 4x

25 = x

x = 25

BAC = 3x – 5

= 3(25) – 5

= 75 – 5

= 70°

Kesimpulan :

  • Sudut BAC = 70°, Yaitu Opsi D