Joke Collection Website - Mood Talk - AED, let's talk
AED, let's talk
A:
Conclusion 1 and quadrilateral AEDF are parallelograms.
Reason: Two groups of parallelograms with parallel opposite sides are parallelograms (definition).
Conclusion 2: There are 6 triangles in the diagram.
Reasons: △DEC, △ECA, △ADE, △DFB, △ABF, △AFB.
Conclusion 3. △AED?△DFA
Reason: The opposite sides of the parallelogram are equal. In the parallelogram deaf, DF=AE, FA=ED and AD=DA, so △ AED △ DFA (SSS).
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