Question

please give full solution​

Answer 1

Step-by-step explanation:

angle CRS = angle BSR = 2x +15°

2x + 15° + x + 30° = 180°

3x + 45° = 180°

3x = 180° - 45°

= 135°

x = 45°

angle CRS = 105°

angle PSA = 2x + 15° = 105°

angle PSA + angle PSB = 180°

105° + angle PSB = 180°

angle PSB = 180° - 105°

= 75°

So,

Angle PSB = 75°

Angle CRS = 105°