3 years ago

Please help What is the value of d?

1 answer:

8 0

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

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3 years ago

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Mariana [72]

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2 years ago