Provide a counterexample to the statement.

If the sums of the interior angles of two polygons are equal, then the polygons must be similar.

acute triangle, obtuse triangle

Step-by-step explanation:

The sums of interior angles of all triangles are 180°, but the triangles are only similar if their corresponding angles are congruent.

An acute triangle and an obtuse triangle both have angle sums of 180°, but can never be similar to one another.