1. 3,5 cm( π =22/7 ) 2.56 cm(π =22/7 ) 3.6 cm(π =3,14 ) 4.80 cm(π =3,14 ) tolong yah kk hitung keliling lingkaran dari soal soal ini.....

1.) Keliling lingkaran
= 2 × Π × r
= 2 × 22/7 × 3,5
= 22 cm

2.) Keliling lingkaran
= 2 × Π × r
= 2 × 22/7 × 56
= 352 cm

3.) Keliling lingkaran
= 2 × Π × r
= 2 × 3,14 × 6
= 37,68 cm

4.) Keliling lingkaran
= 2 × Π × r
= 2 × 3,14 × 80
= 502,4 cm