It looks like you're working on problems involving parallel lines, angles, and transversals. Here’s a breakdown of how to approach these types of problems:

1. Identify Angle Relationships: Since lines $s$ and $t$ are parallel, the corresponding, alternate interior, and consecutive interior angles will have specific relationships (e.g., corresponding angles are equal, alternate interior angles are equal, and consecutive interior angles are supplementary).

2. Using Diagrams:

   • For questions 1-7, analyze the first diagram where lines $s$ and $t$ are parallel and cut by a transversal.
   • Use angle pairs (like corresponding and alternate interior angles) to determine specific angle measures or relationships.

3. Complete the Table (Question 7):

   • Based on known angle pairs, fill in each row with either the measure of the angle or the relationship (e.g., if one angle is 85°, its alternate interior or corresponding angle should also be 85°).

4. AC and GK Parallel Lines: For questions 8-12, analyze the second diagram. Use the same angle relationships based on parallel lines (e.g., if $\angle ABD = 50^\circ$, then certain other angles should be equal or supplementary based on their position).

5. Euclid's Message: This final part likely requires decoding using the numbered answers from the previous questions to fill in the message.

Would you like detailed solutions for each question, or help with specific questions?

Here are five additional questions related to these concepts:

1. What is the relationship between alternate exterior angles when two lines are parallel?
2. How do we calculate unknown angles if given one angle in a parallel line and transversal setup?
3. What are consecutive interior angles, and what is their sum when the lines are parallel?
4. How do corresponding angles help in proving lines are parallel?
5. What is a transversal, and how does it interact with parallel lines?

Tip: When working with parallel lines, always look for patterns in angle types (e.g., corresponding or alternate interior) to quickly identify equal or supplementary angles.