Answer:
Value of x is 60°.
Step-by-step explanation:
According to the theorum,
The exterior angle is equal to the sum of the opposite two interior angles.
Exterior angle is 144°. The interior angles are 84° and x°
[tex]\longrightarrow[/tex] x° + 84° = 144°
[tex]\longrightarrow[/tex] x° = 144° - 84°
[tex]\longrightarrow[/tex] x° = 60°
Value of x is 60°.
