Evaluate square root of 361

Problem

√(,361)

Solution

1. Identify the number under the radical, which is 361

2. Determine if 361 is a perfect square by testing integers.

3. Test integers ending in 1 or 9 since 1=1 and 9=81

4. Calculate 19×19

5. Verify the product: 19×19=361

Final Answer

√(,361)=19

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