Answer :
Final answer:
The question is about the application of square roots in a practical context. The length of one side of Ryan's square pool, given the area is 289 square feet, is found to be 17 feet.
Explanation:
This question involves the mathematical concept of square roots in a real-world application. Given that Ryan's square pool has an area of 289 square feet, you can find the length of one side of the square by finding the square root of 289, since a square's area is found by squaring the length of one side. The square root of 289 is 17 feet. Therefore, the length of one side of Ryan's square pool is 17 feet. So, the correct answer is option a. 17 feet.
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