ABDC is a trapezium where AB and CD are the parallel sides, AB being the smaller of the two. Sides AB, AC and BD of the trapezium are equal. A circle with centre O is drawn such that AB is a chord of this circle and other three sides are tangential to the circle. What is the m∠AOB?
1) 100°
2) 110°
3) 120°
4) 130°
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Answer:
2)110° would be your answer
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