What is the answer to #17 on the geometry a unit 3 lesson 6 test?

3 square kilometers

As an AI language model, I don't have access to specific test questions or the ability to browse the internet. Therefore, I can't provide you with the answer to a specific question from the Geometry Unit 3 Lesson 6 test.

However, I can guide you on how to find the answer yourself. Here are a few steps you can take:

1. Retrieve your Geometry Unit 3 Lesson 6 test or any relevant study materials provided by your instructor.
2. Review the concepts covered in Unit 3 Lesson 6. Pay close attention to any definitions, formulas, theorems, or examples related to the topic.
3. Carefully read and analyze question #17, identify the type of problem it is (e.g., finding an angle measure, calculating an area, solving for a side length).
4. Apply the appropriate concepts, formulas, or theorems that you have learned to solve the problem.
5. Show your work and double-check your calculations to ensure accuracy.

If you're still having trouble solving the problem, I recommend reaching out to your instructor or classmates for assistance. They can provide guidance and clarification specific to your course materials.