What is the square root of eighty?

Answer 1

Go 20 units of distance in any direction. Turn 90 degrees clockwise and go 20 units of distance in a straight line. Turn 90 degrees clockwise and go 20 units of distance in a straight line. Turn 90 degrees clockwise and go 20 units of distance in a straight line.

You will have travelled along a square route whose total distance is 80 units. Alternatively you could have turned counter clockwise each time.

Answer 2

8.94

if you have a calculator, this would be really easy to solve.