1)
luas perkandang
= 100m²/4
= 25m²
panjang sisi
= √25
= 5m
dijadikan dm
= 5 x 10
= 50dm
luas perkandang = 50² = 2500dm²
1. 100:4=25m persegi
=25×100=2.500 dm persegi
2. 7m×100=700cm
=700×90=63.000cm persegi
=63.000÷1.000.000=0,063 are
3. 84÷12=7
4. 20cm persegi
=20:10.000=0,002m persegi
=20÷0,002=10.000
5. Permukaan meja=120×80=9.600cm
persegi
keliling buku=2×(25+17,5)=85 cm
=9.600-85=9.515 cm persegi
6. 25×8
20×10
50×4
100×2
maaf kalau salah
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1)
luas perkandang
= 100m²/4
= 25m²
panjang sisi
= √25
= 5m
dijadikan dm
= 5 x 10
= 50dm
luas perkandang = 50² = 2500dm²
1. 100:4=25m persegi
=25×100=2.500 dm persegi
2. 7m×100=700cm
=700×90=63.000cm persegi
=63.000÷1.000.000=0,063 are
3. 84÷12=7
4. 20cm persegi
=20:10.000=0,002m persegi
=20÷0,002=10.000
5. Permukaan meja=120×80=9.600cm
persegi
keliling buku=2×(25+17,5)=85 cm
=9.600-85=9.515 cm persegi
6. 25×8
20×10
50×4
100×2
maaf kalau salah