Matematika

Pertanyaan

AB = 18 cm, CD = 9 cm, AD = 12 cm
PQ = 12 cm

**Tolong dijawab pakai caranya**
AB = 18 cm, CD = 9 cm, AD = 12 cm PQ = 12 cm **Tolong dijawab pakai caranya**

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1 Jawaban

  • AB = CD + x
    18 = 9 + x
    9 = x

    BC² = x² + AD²
    BC² = 9² + 12²
    BC² = 81 + 144
    BC² = 225
    BC = √225
    BC = 15

    BC/QR = AB/PQ
    15/QR = 18/12
    QR = 15 × 12/18
    QR = 10

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