Answer :

Final answer:

Rotating an equilateral triangle around a bisecting axis results in a triangular pyramid, with a trigonal pyramid shape.


Explanation:

When an equilateral triangle is rotated around an axis bisecting the triangle, it forms a triangular pyramid. A triangular pyramid has a triangular base that is capped at the top. The shape of the molecule in this case is described as a trigonal pyramid due to its symmetrical nature.


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