Question

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Answer 1

Answer:

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Answer 2

1) let x be angle

180°-x=130

180°-130°=x

x=50°

2)let the supplement angle be x

180°-(x+60°)=x

20°-x=x

2x=20°

x=10°

3)90°-65°=1/3x

25°×3=x

x=75°

4)180°-107°= 73°

180°-170°=10°

180°-53°=127°

5)let the supplement angle be x

180°- 4x=x

5x=180°

x=180/5=40°

x=36°

Hope it will help you