# What is the square root of 64?

Go 16 units of distance in any direction. Turn 90 degrees
clockwise and go 16 units of distance in a straight line. Turn 90
degrees clockwise and go 16 units of distance in a straight line.
Turn 90 degrees clockwise and go 16 units of distance in a straight
line.

You will have travelled along a square route whose total distance
is 64 units. Alternatively you could have turned counter clockwise
each time.

The squ**a**re roots of 64 are -8 and 8.

They are -8 and +8.

The square roots of 64 are ±8.