Matematika

Pertanyaan

Nilai y - x adalah...
a.5°
b.10°
c.15°
d.20°
Nilai y - x adalah... a.5° b.10° c.15° d.20°

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2 Jawaban

  • SUDUT

    3x = 60 (sehadap)
    x = 60/3
    x = 20°

    4y = 180 - 3x (berpelurus)
    4y = 180 - 60
    4y = 120
    y = 120/4
    y = 30°

    y - x = 30 - 20 = 10°

  • 4y = 120
    y = 120 : 4
    y = 30

    3x = 60
    x = 60 : 3
    x = 20

    y - x = 30- 20 = 10

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