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is triangle def congruent to triangle xyz? oa. yes, triangle def was re…

Question

is triangle def congruent to triangle xyz?
oa. yes, triangle def was reflected across its side df and translated 8 units to the left to create triangle xyz
ob. yes, triangle def was reflected across its side fe and translated 2 units to the left to create triangle xyz
oc. yes, triangle def was reflected across its side fe and translated 8 units to the left to create triangle xyz
od. no, triangle def is not congruent to triangle xyz

Explanation:

Step1: Recall congruence and transformation properties

Congruent triangles have the same shape and size. Transformations like reflection and translation do not change the size and shape of a figure.

Step2: Analyze the options

  • Option A: If triangle DEF was reflected across its side DF and translated 8 units to the left, the size and shape of the triangle would remain the same. So triangle DEF would be congruent to triangle XYZ.
  • Option B: Translating 2 units is not enough to map DEF to XYZ as per the grid - based visual (assuming standard grid - unit - based congruence determination from the figure's position).
  • Option C: Reflecting across FE is not the correct axis of reflection (assuming the figure's orientation) to get congruence.
  • Option D: Since reflection and translation (when done correctly as in Option A) preserve congruence, this option is wrong.

Answer:

A. Yes, Triangle DEF was reflected across its side DF and translated 8 units to the left to create triangle XYZ