Question

find x in the following figure
​

Answer 1

Step-by-step explanation:

• From A, 1 + 90°= 180° [linear pair]

=> angle 1 = 90°

• Sum of all exterior angles of any polygon is always 360°.

• Therefore,

90° + 60° + 40° + angle 1 + x = 360°

=> 190° + 90° + x = 360°

=> 280° + x = 360°

=> x = 360° - 280°

=> x = 80°

PLEASE MARK ME BRAINLIEST, IF YOU LIKE.