Matematika

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tolong di jawab dong
mohon bantuannya
tolong di jawab dong mohon bantuannya

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  • Kelas 5 Matematika
    Bab Pengukuran

    a] Keliling
    = 2 x (p + l) x 1/skala
    = 2 x (8 + 4) cm x (1/(1/2.500))
    = 2 x 12 cm x 2.500
    = 60.000 cm
    = 600 m

    b] Keliling
    = p x l x (1/skala)²
    = 8 cm x 4 cm x (1/(1/2.500))²
    = 32 cm² x 6.250.000
    = 200.000.000 cm²
    = 20.000 m²

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