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grin007 [14]
3 years ago
15

Please help! NO LINKS (Answer and explanation please :( )

Mathematics
1 answer:
iris [78.8K]3 years ago
5 0

Answer:

sum of angles in a quadrilateral is 360

Step-by-step explanation:

3x-15 +3x+15+y+30+D=360

hope that explanation helps

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<em>Hey there!</em>

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