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skelet666 [1.2K]
3 years ago
9

Work out the size of x

Mathematics
1 answer:
topjm [15]3 years ago
7 0

Answer:

They are supplementary angles so they add up to make 180°

So you do the reverse

180°-100°=x

80°=x

Step-by-step explanation:

Please give me brainliest

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