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Question
In the figure given below, AB || DC. If ∠B = 70°, then ∠BCD is ______.
Options
80°
110°
100°
70°
MCQ
Fill in the Blanks
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Solution
In the figure given below, AB || DC. If ∠B = 70°, then ∠BCD is 110°.
Explanation:
AB ∥ DC, so ∠B (given 70°) and ∠BCD form a pair of interior angles on the same side of the transversal inside the circle.
Thus ∠BCD = 180° − 70° = 110°.
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