Answer:
x = 30
Step-by-step explanation:
Since the triangles are congruent then corresponding angles are congruent.
∠ B ≅ ∠ E
The sum of the 3 angles in Δ CDE = 180°, thus
∠ E = 180° - (55 + 65)° = 180° - 120° = 60°
Thus
2x = 60 ( divide both sides by 2 )
x = 30
