Matematika

Pertanyaan

tolong dijawab nomor 4
tolong dijawab nomor 4

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1 Jawaban

  • a. nilai x
    diagonal AC = diagonal BD
    15 cm = 2x + 7 cm
    15 cm - 7 cm = 2x
    8 cm = 2x 
    x = 8 cm / 2
    x = 4 cm

    b. jumlah panjang diagonal
    diagonal AC + diagonal BD
    15 cm + 15 cm = 30 cm

    Semoga membantu

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