Matematika

Pertanyaan

tolong jawab yah pleasee
tolong jawab yah pleasee

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1 Jawaban

  • x = 3a
    y = 2a

    180° = x + y + 90°
    180° = 3a + 2a + 90°
    90° = 5a
    18° = a

    x - y = 3a - 2a = a = 18°

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