The next thing that Carlotta should do for the next step is A. Place the point of the compass on point Q and draw an arc that intersects the first arc, using the same width for the opening of the compass as the first arc
An equilateral triangle simply refers to the triangle that has all its sides to be equal. An equilateral triangle also means a triangle where all the angles are 60°.
Since she has already constructed the line segment and arc that's shown in the diagram, then the next thing to do is to place the point of the compass on point Q and draw an arc that intersects the first arc, using the same width for the opening of the compass as the first arc.
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