Calculate the square root of 361
Problem
Solution
Identify the number under the radical, which is
361 Determine if the number is a perfect square by testing integers.
Test the integer
19 because20=400 which is slightly larger than361 and19 ends in9 which results in a1 when squared (9×9=81 .Calculate the product of
19×19
Conclude that the square root of
361 is19
Final Answer
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