Question

calcule a medida de x e y nas figuras . me ajudem , por favor!!

Answer 1

1°figura:

x =58°

y=180°-58°=> y=122°
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2°figura:

3x-30°=(x/2)+15° => 5x/2=45° => x=18°

y=180°-18° => y=162°
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3°figura:

x=32°18`

y=180°-32°18` => y= 179°60`-32°18`
y=147°42`
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4°figura:

2x=180°-112°30` => 2x=179°60`-112°30`
2x=67°30` => 2x=66°90` => x=33°45`

y=2x => y=67°30`