Which of the following is a line of symmetry?
The answer is: ( a ).
The dotted line in the drawing is a line of symmetry. When the thread in the drawing is pulled straight, a quadrilateral with two diagonals with a line of symmetry is formed. The line of symmetry divides this shape into two parts that are mirror images of each other. By folding the shape along this line, the two parts will match exactly. This type of symmetry is known as reflective symmetry and is commonly found in nature and art. Understanding lines of symmetry can help us better appreciate the beauty of the world around us.
