All circles, all squares, all rhombi, and all regular polygons (regular polygons are equilateral/equiangular polygons, such as equilateral triangles, squares, and the octagons used for stop signs) are similar because they all have the same shapes, but different size. All circles maintain the same shape because they are all perfectly round (remember that a circle is the set of all points that are equidistant from a distinct point called the center of the circle). All squares, all rhombi, and all regular polygons maintain the same shape because their corresponding angles are congruent.
So, with that being said; “What is the least amount of information needed to determine whether a pair of triangles is similar?” Explain your reasoning in the space below.