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andreaolvera
09.06.2020 •
Mathematics
We have that AB || DC. By a similar argument used to prove that △AEB ≅ △CED, we can show that △ ≅ △CEB by . So, ∠CAD ≅ ∠ by CPCTC. Therefore, AD || BC by the converse of the theorem. Since both pair of opposite sides are parallel, quadrilateral ABCD is a parallelogram.
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Ответ:
(5x +4) (4x + 9) the (92-6)
is 4 cot (-45)?