Question 19
Try this with a triangle whose three sides are equal, and you will see it.
Source context: for a shape, the number of symmetry axes is the number of ways to fold it into two coincident halves, not the number of successive folds.
Editorial scored task: draw or identify every symmetry axis of an equilateral triangle. Explain how each fold makes the halves coincide, and explain the distinction from repeated folding without unfolding.
Source context: for a shape, the number of symmetry axes is the number of ways to fold it into two coincident halves, not the number of successive folds.
Editorial scored task: draw or identify every symmetry axis of an equilateral triangle. Explain how each fold makes the halves coincide, and explain the distinction from repeated folding without unfolding.