Question

please someone explain this briefly ​

Answer 1

Step-by-step explanation:

here is your answer thank

Answer 2

(a)Sum of all angles of a quadrilateral = 360°

So,

80°+95°+100°+x° = 360°

275°+x° = 360°

x° = (360-275)°

x° = 85°

(b)Sum of all angles of a quadrilateral = 360°

So,

105°+50°+110°+x° = 360°

265°+x° = 360°

x° = (360-265)°

x° = 95°