1. The problem appears to list several lengths with square root expressions: A is $9\sqrt{2}$ m, B is $\sqrt{2}$ m, C is $\sqrt{47}$ m, D is $\frac{5}{2}$ m, and E is 3 m. 2. To understand or compare these lengths, we can approximate or simplify each expression. 3. Approximate each length: - $9\sqrt{2} \approx 9 \times 1.414 = 12.726$ m - $\sqrt{2} \approx 1.414$ m - $\sqrt{47} \approx 6.856$ m - $\frac{5}{2} = 2.5$ m - $3$ m 4. These values can be used for comparison or further calculations as needed. Final answer: The lengths are approximately $12.726$ m, $1.414$ m, $6.856$ m, $2.5$ m, and $3$ m respectively.