tolong bantu yaa...:)

no.1=3,14 . 25,12
no.2=12
no.3=3,14 . 75,36
no.4=35
no.5=3,14 . 141,3
maaf kalo slh

1. π = 3,14
K = 3,14 x 8 = 25,12 cm

2. d = 37,68 : 3,14 = 12 cm

3. π = 3,14
K = 3,14 x 24 = 75,36 cm

4. d = 110 x 7/22 = 35 cm

5. π = 3,14
K = 3,14 x 45 = 141,3 cm

6. π = 22/7
K = 22/7 x 49 = 154 cm

7. d = 157 : 3,14 = 50 cm

8. π = 22/7
K = 22/7 x 63 = 198 cm

9. 220 x 7/22 = 70 cm

10. π = 22/7
K = 22/7 x 77 = 242 cm