Math, asked by adebdavi27, 3 months ago

please answer best answer gets brainliest

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Answered by adityakumary347

1

18. 2x=180°

x=90°

19. 7x+3x=180°

x=18°

20. 3x+15=90°

3x=75°

x=25°

Answered by Anonymous

2

Answer:

18. 2x=180°

x=90°

19. 7x+3x=180°

x=18°

20. 3x+15=90°

3x=75°

x=25°

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