What is similarity

The video tutorial discusses the concepts of congruence and similarity in geometry, focusing on triangles. Congruence is defined as having the same shape and size, while similarity involves having the same shape but not necessarily the same size. An example with equilateral triangles is used to illustrate these concepts, emphasizing that while angles may be congruent, side lengths can differ. The tutorial concludes by reinforcing the understanding of these geometric principles.

What is the significance of side lengths in determining similarity between triangles?

How can you determine if two triangles are similar based on their angles?