The AAS Congruence Theorem Quick Check

1 of 51 of 5 Items
Question
Use the image to answer the question.

Two triangles, D E F and A double prime B double prime C double prime, are shown.

To show how AAS follows from the definition of congruence, answer the following question. What rigid transformation maps △A"B"C"→△DEF?

(1 point)
Responses

rotation
rotation

dilation
dilation

translation
translation

reflection
reflection
Skip to navigation

1 answer

To determine the rigid transformation that maps triangle \( A''B''C'' \) to triangle \( DEF \), we need to analyze the relationship between the two triangles based on their orientation and position.

  1. Rotation: This transformation turns a figure around a point. If the triangles are facing the same way but are in different locations, a rotation could work.

  2. Dilation: This transformation changes the size of a figure but does not preserve congruence since it alters side lengths.

  3. Translation: This transformation shifts a figure from one location to another without changing its orientation. If the triangles are congruent and only need to be moved without rotation, translation would be the appropriate choice.

  4. Reflection: This transformation flips a figure over a line. If the triangles are flipped (i.e., not facing the same direction), reflection might be needed.

Based on the typical application of the AAS (Angle-Angle-Side) Congruence Theorem, if the two triangles are congruent and need to be aligned correctly, the answer will often be either translation or rotation.

Without the actual image, I can't definitively say which transformation is correct based on visual alignment. However, if the triangles are oriented the same way and are merely in different places, the most likely answer would be translation. If they are flipped, then reflection would be the answer.

If you see that the two triangles have matching angles and sides in the same orientation, choose translation. If they are flipped, choose reflection. If neither fits, and looks like they look simply rotated but not distorted, that would be rotation.

Choose translation if that fits; otherwise, use reflection if they look mirror-imaged. Please check the image for orientation to confirm.