Question

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Answer 1

Step-by-step explanation:

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Answer 2

Answer:

20°

Step-by-step explanation:

130°-90°=40°

40°+90°=130°

180°-130°=50°

90°-50°=40°

90°+70°=160°

180°-160°=20°

40°-20°=20°

therefore 20° is the answer

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