Westonci.ca offers fast, accurate answers to your questions. Join our community and get the insights you need now. Explore thousands of questions and answers from knowledgeable experts in various fields on our Q&A platform. Join our Q&A platform to connect with experts dedicated to providing accurate answers to your questions in various fields.
Sagot :
[tex]
\text{Given:} \\
AD = BC \quad \text{and} \quad AD \parallel BC \\
\text{To Prove:} \\
ABCD \text{ is a parallelogram.} \\
\text{Proof:} \\
\begin{array}{ll}
1. & AD = BC \quad \text{(Given)} \\
2. & AD \parallel BC \quad \text{(Given)} \\
3. & \angle DAC = \angle ACB \quad \text{(Alternate Interior Angles Theorem)} \\
4. & \angle DCA = \angle BAC \quad \text{(Alternate Interior Angles Theorem)} \\
5. & \triangle DAC \cong \triangle ACB \quad \text{(SAS Congruence Postulate)} \\
6. & AB \parallel CD \quad \text{(Corresponding Angles Postulate from congruent triangles)} \\
7. & \text{ABCD is a parallelogram} \quad \text{(Opposite sides are equal and parallel)}
\end{array}
[/tex]
Thank you for choosing our service. We're dedicated to providing the best answers for all your questions. Visit us again. Thank you for visiting. Our goal is to provide the most accurate answers for all your informational needs. Come back soon. Stay curious and keep coming back to Westonci.ca for answers to all your burning questions.