Respuesta :

Answer:x=140

Step-by-step explanation:

110 is the same angle as 30 so add them and you get 140

i hope that helped

fatemehkorea

Answer:

x = 75

Step-by-step explanation:

the sum of the interior angles of a quadrilateral is 360°

80 + 65 + 110 + x + 30 = 360

to find x..

80 + 65 + 110 + x + 30 = 360

x = 360 - 80 - 65 - 110 - 30

x = 75

that's mean 80° + 65° + 110° + (75 + 30)° = 360°