Please help What is the value of d?

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asked Oct 23, 2019 192k views

2 Answers

Martin Hansen Lennox · Answer 1 · 2019-10-27T05:56:58+0000

Rule: with any inscribed quadrilateral, the opposite angles are supplementary (they add to 180 degrees)

Based on that rule, we can say
d+100 = 180
d+100-100 = 180-100
d = 80

Answer: 80

Please help What is the value of d?

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