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maaf klo salah
36=2²x3²
72=2³x3²
fpb= 2²x3 = 4x3 =12
kpk= 2³x3²= 8x9 =72
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84<--- ini jawaban nya
27.615-60x4+2800:(-35)
615-240+(-80)
375-80
295<--- ini jwbnya
28.panjang tali 5m
πr²(luas lingkaran)
3,14x5²
3,14x25
78,5m²
29.
trapesiunm=1/2 x(a+b)xt
1/2x(28+32)x28
1/2x60x28
30x28
840cm²
1/2 lingkaran=1/2πr²
1/2x22/7x14x14
22x14
308cm²
luas keduanya=840+308
1148cm²
30.v=15000m³
dlm waktu 5 jam
debit=...
5 jam=300 mnt
debit=15000m³/300
50m³/mnt