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P : B : K
= 8 : 6 : 2
= (8:2) : (6:2) : (2:2)
= 4 : 3 : 1
2)
uang Lani
= 3/(2+3) x 150.000
= 3/5 x 150.000
= 3 x 30.000
= 90.000 rupiah
3)
lebar
= 4/6 x 24
= 4 x 4
= 16 cm
4)
L1 : L2
= (s1)² : (s2)²
= (9)² : (12)²
= 81 : 144
= (81:9) : (144:9)
= 9 : 16
3. 4/6×24= 16cm
4. s×s= 9×9 = 81
s×s= 12×12 =144
perbandingan = 81:144 = 9:16