Line of Symmetry
A line of symmetry is a line you can draw through a geometric shape that passes through the center of the shape and divides it into identical halves that are mirror images of each other. Here are some shapes and the lines of symmetry (the dashed lines) for them:
You can't draw lines of symmetry for every shape. Some shapes, like a scalene triangle, have no possible lines of symmetry.
Now, here's a problem for you:
Draw a line of symmetry for this equilateral triangle:
Bonus question: How many lines of symmetry does this triangle have? _____


