Final answer:
To measure the stride length of a trackway, meters or kilometers are the appropriate units of measurement, and a measuring tool capable of measuring larger scales, such as a measuring wheel, should be used. Conversion between scale measurements and actual distances involves using ratios and understanding the appropriate unit of measurement for the size of the object in question.
Step-by-step explanation:
To measure the stride length (SL) from a trackway, we must use a scale to convert our measurements. When dealing with a trackway, which is a considerable size, the appropriate units of measurement would be meters or kilometers, as these are suitable for larger distances. For example, the length of a street is more appropriately measured in meters or kilometers, while the size of a small worm would be measured in millimeters or centimeters.
For tools of measurement, the height of a light switch or the width of a refrigerator would be measured using a tape measure in centimeters or inches, which are suitable for small to medium-sized objects. A trackway, being larger, requires a measurement tool that can measure in meters.
When using a scale ratio, the key is to write it down, such as 0.5 cm/14 meters, then use a ratio to compare the scale distance to the actual distance. If a student picture's Mia's walking distance as d meters, the scale to actual distance ratio would be 6.25 cm/d meters. Lastly, when working with map scales and proportions, such as 0.5 inches = 100 miles, the conversion between the scale measurement to the actual distance can be calculated.