Quadrilateral ABCD is inscribed into a circle. What is the : DS Archive
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# Quadrilateral ABCD is inscribed into a circle. What is the

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06 Oct 2008, 00:43
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Quadrilateral $$ABCD$$ is inscribed into a circle. What is the value of $$\angle BAD$$ ?

1. $$AC = CD$$
2. $$\angle ADC = 70^o$$
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06 Oct 2008, 01:44
E for me. AC = CD and angle ADC fix three points namely A, D and C. B can still take multiple places and accordingly, angle BAD can have multiple values.
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