Penjelasan dengan langkah-langkah:
1.Kolam:20 ubin biru:20×20=400 ubin putih:8+(20-1×4)
=8+(19×4)
=8+76=84
2.kolam:25 ubin biru:25×25=652 ubin putih=8+(25-1×4)=8+(24×4)=8+96=104
3.kolam:30 ubin biru:30×30=900 ubin putih:8+(30-1×4)=8+(29×4)=8+116=124
4.kolam:400 ubin biru:400×400=106.000 ubin putih:8+(400-1×4)=8+(399×4)=8+1596=1604
5.kolam:500 ubin biru:500×500=250.000 ubin putih:8+(500-1×4)=8+(499×4)=8+1996=2004
maaf kalo salah ya......
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Penjelasan dengan langkah-langkah:
1.Kolam:20 ubin biru:20×20=400 ubin putih:8+(20-1×4)
=8+(19×4)
=8+76=84
2.kolam:25 ubin biru:25×25=652 ubin putih=8+(25-1×4)=8+(24×4)=8+96=104
3.kolam:30 ubin biru:30×30=900 ubin putih:8+(30-1×4)=8+(29×4)=8+116=124
4.kolam:400 ubin biru:400×400=106.000 ubin putih:8+(400-1×4)=8+(399×4)=8+1596=1604
5.kolam:500 ubin biru:500×500=250.000 ubin putih:8+(500-1×4)=8+(499×4)=8+1996=2004
maaf kalo salah ya......