Question

tolong ya hari ini bakal dikumpul
1. D=28cm
2. D=10 cm
3. R=35 cm
4. = 20cm
Menghitung keliling lingkaran​

Answer 1

kak kalo bener pap nn nya yaa~

rumus keliling lingkaran = dπ

1. 28cm × 22/7 =

7×4 × 22/7 =

4×22 = 88cm

2. 10cm × 3,14 =

31,4cm

3. 2(35cm) × 22/7 =

2×5×7cm × 22/7 =

2×5cm × 22 =

10 × 22 = 220cm

4. 20 × 3,14 =

62,8cm