BAB VII PERBANDINGAN

BAB VII
PERBANDINGAN

A. SKALA

Skala adalah perbandingan antara ukuran pada gambar (peta) dengan ukuran sebenarnya.

Skala = \frac{ukuran~pada~gambar~(peta)}{ukuran~sebenarnya}

contoh:
skala 1 : 10.000 artinya 1 cm mewakili 10.000 cm atau 100 m jarak sebenarnya.

contoh soal:

  1. Jarak kota A ke kota B adalah 200 km. Jarak pada peta 10 cm. Berapakah skalanya?

    Jawab:

    Skala = \frac {Jarak~pada~peta}{jarak~sebenarnya}
    = \frac {10~cm}{200~km}
    = \frac {10~cm}{20.000.000~cm}

= 1 : 2000.000

selanjutnya di sini

This entry was posted on Thursday, November 8th, 2012 at 3:29 am and is filed under Matematika SMP. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.



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