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28. given: \\( \\triangle bat \\cong \\triangle cat \\) which statement…

Question

  1. given: \\( \triangle bat \cong \triangle cat \\) which statement is not true by cpctc? \\( \overline{ab} \cong \overline{ac} \\) \\( \angle bat \cong \angle cat \\) \\( \angle bta \cong \angle cta \\) \\( \overline{ab} \cong \overline{ct} \\)

Explanation:

Step1: Recall CPCTC (Corresponding Parts of Congruent Triangles are Congruent)

If \(\triangle BAT\cong\triangle CAT\), then corresponding sides and angles are congruent.

  • For \(\overline{AB}\cong\overline{AC}\): \(AB\) and \(AC\) are corresponding sides in \(\triangle BAT\) and \(\triangle CAT\). So \(\overline{AB}\cong\overline{AC}\) by CPCTC.
  • For \(\angle BAT\cong\angle CAT\): \(\angle BAT\) and \(\angle CAT\) are corresponding angles in \(\triangle BAT\) and \(\triangle CAT\). So \(\angle BAT\cong\angle CAT\) by CPCTC.
  • For \(\angle BTA\cong\angle CTA\): \(\angle BTA\) and \(\angle CTA\) are corresponding angles in \(\triangle BAT\) and \(\triangle CAT\). So \(\angle BTA\cong\angle CTA\) by CPCTC.
  • For \(\overline{AB}\cong\overline{CT}\): \(AB\) is a side of \(\triangle BAT\) and \(CT\) is not the corresponding side to \(AB\) in \(\triangle CAT\). Corresponding side to \(AB\) is \(AC\), corresponding side to \(BT\) is \(CT\).

Answer:

\(\overline{AB}\cong\overline{CT}\)