Final answer:
The true statements are: de ≅ d²e² and d²c² ≅ dc.
Step-by-step explanation:
To determine which statements are true, let's consider each option one by one:
- de ≅ d²e²: This statement is true because de and d²e² represent the same line segment.
- ec ≅ e²c²: This statement is false because ec and e²c² do not represent the same line segment.
- ed ≅ d²c²: This statement is false because ed and d²c² do not represent the same line segment.
- c²d² ≅ d²e²: This statement is false because c²d² and d²e² do not represent the same triangle.
- d²c² ≅ dc: This statement is true because d²c² and dc represent the same line segment.
- Δcde ≅ Δc²d²e²: This statement is false because Δcde and Δc²d²e² do not represent the same triangle.
Therefore, the true statements are:
1) de ≅ d²e²
5) d²c² ≅ dc