Question

Besar Sudut BAC adalah... tolong saya kag bisa...tolong jawab dengan caranya ya...

Answer 1

Verified answer

Sudut BCA :
BCA = 180° - 145°
BCA = 35°

Sudut ABC :
ABC = 180° - 3x

Nilai x :
ABC + BCA + BAC = 180°
(180 - 3x)° + 35° + 2x = 180°
180° - 3x° + 35° + 2x° = 180°
- x = 180° - 35° - 180°
- x = - 35°
x = 35°

Sudut BAC :
2x
= 2 × 35°
= 70°

Maaf Kalau Salah