B. does not have the line symmetry
What does it mean by exactly one line of symmetry?
The line of symmetry is the line that cuts the shape exactly in half. it means that if you were to fold the shape along a line, both halves will match exactly. Equally, if you were to place the mirror along the line, the shape will remain unchanged. the square has four lines of symmetry.
How many lines of symmetry does a line have?
A line of symmetry is a imaginary axis passing through the center of the object or divides into 2 equal halves. Since the diamond has all 4 sides equal, it has 2 lines of symmetry. the shape could have more than 1 line of symmetry.
Learn more about lines of symmetry here https://brainly.com/question/1597409
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