keliling lingkaran
stngh lingkaran
lingkaran 1
1/2 × 3,14 × 20 = 31,4
lingkaran 2
1/2 × 3,14 × 10 = 15,7
31,4 + 15,7 = 47,1
maapin ya kalo salah'-'
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keliling lingkaran
stngh lingkaran
lingkaran 1
1/2 × 3,14 × 20 = 31,4
lingkaran 2
1/2 × 3,14 × 10 = 15,7
31,4 + 15,7 = 47,1
maapin ya kalo salah'-'