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maka satu angka dari perbandingan nya
0,67
jadi jika 16 =
16*0,67=10,72
π x 6² : π x B² = 9 : 16
36 / B² = 9 / 16
36x16=9B²
576=9B²
576/9=B²
64=B²
B=√64=8 cm