Questions: T V ≅ U W. Complete the proof that triangle T U W ≅ triangle U W W.
- Statement - Reason
- V W ⊥ T U - Given
- angle T U W ≅ angle U T V - Given
- T V ≅ U W - Given
- angle U T V ≅ angle T V W -
- angle U W V ≅ angle T U W - Alternate Interior Angles Theorem
- angle T U W ≅ angle T V W - Transitive Property of Congruence
- angle U W V ≅ angle T V W - Transitive Property of Congruence
- V W ≅ V W -
- triangle T V W ≅ triangle U W V - SAS
Transcript text: $\overline{T V} \cong \overline{U W}$. Complete the proof that $\triangle T U W \cong \triangle U W W$.
\begin{tabular}{|l|l|l|}
\hline & Statement & Reason \\
\hline 1 & $\overline{V W} \perp \overline{T U}$ & Given \\
\hline 2 & $\angle T U W \cong \angle U T V$ & Given \\
\hline 3 & $\overline{T V} \cong \overline{U W}$ & Given \\
\hline 4 & $\angle U T V \cong \angle T V W$ & \\
\hline 5 & $\angle U W V \cong \angle T U W$ & Alternate Interior Angles Theorem \\
\hline 6 & $\angle T U W \cong \angle T V W$ & Transitive Property of Congruence \\
\hline 7 & $\angle U W V \cong \angle T V W$ & Transitive Property of Congruence \\
\hline 8 & $\overline{V W} \cong \overline{V W}$ & \\
\hline $9 T V W \cong \triangle U W V$ & SAS \\
\hline
\end{tabular}
Solution
Solution Steps
Step 1: Identify the givens
We are given that VW is parallel to TU, ∠TUW ≅ ∠UTV, and TV ≅ UW.
Step 2: Determine ∠UTV ≅ ∠TVW
Since VW || TU, by the Alternate Interior Angles Theorem, ∠UTV ≅ ∠TVW.
Step 3: Determine ∠TUW ≅ ∠TVW
We are given ∠TUW ≅ ∠UTV, and we found that ∠UTV ≅ ∠TVW. Therefore, by the Transitive Property of Congruence, ∠TUW ≅ ∠TVW.
Step 4: Determine VW ≅ VW
VW is congruent to itself by the Reflexive Property of Congruence.
Step 5: Determine ΔTVW ≅ ΔUWV
We have two pairs of congruent angles (∠TVW ≅ ∠TUW and ∠UTV ≅ ∠UVW) and one pair of congruent sides (TV ≅ UW), therefore, by the Side-Angle-Side (SAS) Congruence Postulate, ΔTVW ≅ ΔUWV.
Final Answer:
Fill in the blanks as follows:
4. Given
5. Alternate Interior Angles Theorem
6. Transitive Property of Congruence
7. Transitive Property of Congruence
8. Reflexive Property of Congruence