Bella wants to use rigid transformations to show that △GHI≅△LKJ to illustrate the SSS triangle congruence criterion. Which of the following could she do first?

(1 point)
Responses

Translate △GHI along a vector that takes point I to point L.
Translate triangle upper G upper H upper I along a vector that takes point upper I to point upper L .

Translate △GHI along a vector that takes point G to point L.
Translate triangle upper G upper H upper I along a vector that takes point upper G to point upper L .

Translate △GHI along a vector that takes point G to point J.
Translate triangle upper G upper H upper I along a vector that takes point upper G to point upper J .

Translate △GHI along a vector that takes point I to point K.

1 answer

To show that \( \triangle GHI \cong \triangle LKJ \) using rigid transformations and the SSS (Side-Side-Side) triangle congruence criterion, it's essential to align corresponding points and sides of the triangles.

Among the options provided, the best choice for the first transformation is:

Translate \( \triangle GHI \) along a vector that takes point \( G \) to point \( L \).

This choice directly aligns one vertex of triangle \( GHI \) (point \( G \)) with the corresponding vertex of triangle \( LKJ \) (point \( L \)), creating a clear foundation for the next rigid transformations to align the remaining points and sides. After this translation, you can subsequently translate to align sides according to the SSS criterion.