Calculate the square root of 121

Problem

√(,121)

Solution

1. Identify the number under the radical, which is 121

2. Determine which number, when multiplied by itself, equals 121

3. Recall the multiplication table or test integers: 10×10=100 and 11×11=121

4. Conclude that the principal square root of 121 is 11

Final Answer

√(,121)=11

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