Cho tứ giác lồi ABCD có
B
+
D
= 1800
, CB = CD. Chứng minh AC là tia phân<...
Mathematics, 03.10.2021 14:00 alyssabailey7545
Cho tứ giác lồi ABCD có
B
+
D
= 1800
, CB = CD. Chứng minh AC là tia phân
giác của
BAD
Answers: 2
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