The line of symmetry in the image is 1 and the line of symmetry for the figure is attached
Drawing all lines of symmetry for the figure.
From the question, we have the following parameters that can be used in our computation:
The figure
We can see that
The figure has just three sides such that there is an opening at the top (horizontal)
Also, we can see that
The vertical boundaries of the figure are congruent
This means that we can draw a vertical line through the center of the figure, dividing it into two equal halves that are mirror images of each other.
So, the lines of symmetry in the image is 1 and the figure is attached