Writing a 2 column proof..

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I have no idea where to start! and I've got lots of these to write.

Directions say write a two-column proof...
Given: segment AB is congruent to segment XY, AC is is congruent to XZ, and BC is congruent to YZ.
Prove: triangle ABC is congruent to triangle XYZ

  • Writing a 2 column proof.. -

    If three corresponding pairs of sides of two triangles are congruent, the triangles are congruent.
    Sometimes that is called the side-side-side theorem. Put that in the right hand column. This looks like a one-step proof to me.

    It has been a long time since I did two-column proofs

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