Question㸚, Which of the following transformations carry this regular polygon onto itself? ) [嚆了 reflection across $\ell_{2}$ rotation of $40^{\circ}$ counterclockwise reflection across $\ell_{1}$ rotation of $120^{\circ}$ counterclockwise

Studdy Solution
Conclude which transformations are symmetries:
- Reflections across $\ell_1$ and $\ell_2$ (assuming they are lines of symmetry) map the triangle onto itself. - Rotation of $120^\circ$ counterclockwise maps the triangle onto itself.
Thus, the transformations that carry the triangle onto itself are:
1. Reflection across $\ell_2$
2. Reflection across $\ell_1$
3. Rotation of $120^\circ$ counterclockwise