Question

how many lines of symmetry does this shape have?

Explanation:

Step1: Recall the definition of line of symmetry

A line of symmetry is a line that divides a shape into two identical halves.

Step2: Analyze the given shape

For a semi - circular ring (the given shape), there is only one line that can divide it into two mirror - image halves. That is the line passing through the center of the circular arcs (the line perpendicular to the straight edge of the semi - circular ring).

Answer:

1