Question

which figures show starting steps in the construction of an equilateral triangle?

Explanation:

1. The standard starting steps for constructing an equilateral triangle involve: first drawing a segment (the base), then drawing two circles—one centered at each end of the segment, with a radius equal to the length of the segment. The top-right figure shows this step (two intersecting circles sharing a common radius equal to the distance between their centers).
2. The bottom-left figure shows the result of marking the two intersection points of these circles and connecting them to the endpoints of the original segment, which is a subsequent valid step in forming the equilateral triangle.
3. The top-left figure marks 6 equal divisions around a circle (for a hexagon, not the start of an equilateral triangle construction).
4. The bottom-right figure has unrelated marks that do not align with the standard equilateral triangle construction steps.

Answer:

The top-right figure and the bottom-left figure