Respuesta :
Answer:
The value of x is 100 (d)
Step-by-step explanation:
The only important point is to know that
The sum of interior angles of a triangle is 180 and now the problem is easy.
Hope you understand
Step-by-step explanation:
we know that,
- sum of interior angle of triangle is 180°
Now,
In ∆QSO,
∠Q + ∠S + ∠O = 180°
35° + 30° + ∠O = 180°
∠O = 180° - 65°
∠O = 115°
Now,
we know that,
- sum of all angles in a straight line is 180°
∠SOQ + ∠SOR = 180°
115° + ∠SOR = 180°
∠SOR = 180° - 115°
∠SOR = 65°
Now,
In ∆RTO,
∠R + ∠T + ∠O = 180°
35° + ∠T + 65° = 180°
∠T = 180° - 100°
∠T = 80°
Now,
∠T + ∠x = 180°
80° + ∠x = 180°
∠x = 180° - 80°
∠x = 100°
Therefore,
Option D is correct ✔.