Answer: Based on the list of options provided in the question, all of the metric measures listed (6.5 m, 5.0 m, 4.5 m, 3.92 m, and 3.5 m) are smaller than 15 feet.
Explanation:
As previously mentioned, to directly compare the values, conversion is required. One meter is equivalent to approximately 3.28 feet, so 6.5 m is approximately 21.33 feet, 5.0 m is approximately 16.4 feet, 4.5 m is approximately 14.8 feet, 3.92 m is approximately 12.86 feet, and 3.5 m is approximately 11.48 feet.