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3 years ago

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Mathematics

1 answer:

Ann [662]3 years ago

6 0

Answer:

Step-by-step explanation:

Vertical angles are equal to each other

-2x + 90 = x - 30

90 + 30 = x + 2x add like terms

120 = 3x divide both sides by 3

40 = x

angle <ZD is x - 30 so the answer is 10

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Step-by-step explanation:

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butalik [34]

Answer:

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