Question

please
it's very urgent​

Answer 1

Answer:

a)x = 115°

b)x = 15°

Step-by-step explanation:

we know that,

sum of all angles = 360°

a) 125+80+40+x = 360

245 +x = 360

x = 115

and

b)95+100+80+40+30+x = 360

345+x = 360

x = 15

Answer 2

Step-by-step explanation:

⟹ 80° + 40° + 125° + x° = 360°

⟹ 245° + x = 360°

⟹ x = 360° - 245°

⟹ x = 115° ans.

In figure (b) :-

We know that,

sum of all angles 360°

⟹ 95° + x + 40 + 30° = 180°

⟹ x + 165° = 180°

⟹ x = 180° - 165°

⟹ x = 15° ans.