Go 1.75 units of distance in any direction. Turn 90 degrees clockwise and go 1.75 units of distance in a straight line. Turn 90 degrees clockwise and go 1.75 units of distance in a straight line. Turn 90 degrees clockwise and go 1.75 units of distance in a straight line.
You will have travelled along a square route whose total distance is 7 units. Alternatively you could have turned counter clockwise each time.
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Square root of 2 = 1.414213562... Square root of 7 = 2.645751311... The sum is 4.059964873...
The square root of 49 is 7.7 times 7 is 49, so the square root of 49 is 7. 7
The square root of 49 is 7, because 7 x 7 = 49
The square root of 49 is 7 or -7.