tolong dong bsk dikumpul

1. luas
π.r.r = 22/7.98.98
= 30184
keliling
π.d
22/7.196= 616

2.luas
π.r.r = 3,14.24.24
=1808,64
keliling
π.d = 3,14.48
= 150,72
3. luas
π.r.r=3,14.20.20= 1,256
keliling
π.d = 3,14.40= 62,8


maaf ya cuma bisa bantu segini
like ya- follow

1. a r = 98
L = π.r^2
= 22/7 . 98 .98
= 30184

b. d= 48
k= π.d
= 3,14 . 48
= 150,72

2. K = 314
K = π.d
314 = 3,14 . d
d = 100
jadi r = 100/2
= 50

L= π.r^2
= 3,14 . 50. 50
= 7850