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1. A measure of how long something is end to end-meters, feet, or yards.

2. Answers vary

3. 5280 - 1760 yards=5280 ft.

4.10 - In a direct line.

5. Answers vary

6. 70 mph - 27.89 mph.

7.Going out from the tree by looking under your legs then measuring from you to the tree.

8. Answers vary

9. Shadow clock, seasons, and calendars.