How many lines of symmetry does a square have?

is the midpoint of the number line that extends from to . What is the value of ?

How many lines of symmetry does an octagon have?

How many lines of symmetry does a rectangle have?

How many lines of symmetry does the figure have? This is not an equilateral triangle.

How many lines of symmetry does an octagon have?

The length of a certain line is inches. If this line is cut in half, how long is each half?