Drag any point on triangle ABC to resize the triangle. Study what happens to triangle EFD when you resize triangle ABC. Also try to coincide (put one triangle on top of the other) and see if they match up.
What happens to the sides of triangle EFD when you resize triangle ABC? State what you have observed.
Triangle EFD side lengths are still the same with triangle ABC.
Can we conclude that 2 triangles will always be congruent given the side-side-side (SSS) combination? (You make sure you tried dragging all the points on triangle ABC to see if this SSS combination will always make the triangles congruent to each other)
Yes, we can conclude that is true in all situations. Given that 3 side lengths of the first triangle corresponds to the 3 side lengths of the second triangle, then the two triangles are always congruent.
Is the statement below true?[br][br]Triangle ABC is congruent to triangle DEF by SSS (side-side-side)
No. Because the points A, B, and C should correspond only to points E, F, and D, respectively.