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like: góc đối đỉnh
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ENGLISH DEFINITIONS
exact:
VNEN
góc đối đỉnh
*
☊
vertically opposite angles
*
☊
all words:
VNEN
góc đối đỉnh
*
☊
vertically opposite angles
*
☊
ℹ
góc đối đỉnh * ☊ 
vertically opposite angles * ☊ góc đối đỉnh * ☊ vertically opposite angles * ☊