in figure,
Triangle ABC is an equiladeral
triangle and
ABOC is a quadrilateral
?
then angle Boc = ?
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Answer:
△ABC is an equilateral triangle.
∴ ∠BAC = 60°
Now, ∠BDC + ∠BAC = 180°
∠BDC + 60° = 180°
∠BDC = 180° - 60°
∠BDC = 120°
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