Question

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Answer 1

Respuesta:

c) 130°

Explicación paso a paso:

α + θ + x = 180°

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80° + 2α + 2θ = 180°

40° + α + θ = 90°

α + θ = 90° - 40°

α + θ = 50°

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x + α + θ = 180°

x + 50° = 180°

x = 180° - 50°

x = 130°