Hitunglah panjang diameter bola tersebut?
bantuin pakek cara yah
Luas suatu bola diketahui 314 cm².
L bola = 4Πr^2
314 = 4 x 3,14 x r^2
100 = 4 x r^2
25 = r^2
r = √25
r = 5 cm
d = 2xr
= 2×5
= 10 cm
Luas sisi bola = 4πr^2
314 = 4×3,14×r^2
314 = 12,56×r^2
314/12,56 = r^2
25 = r^2
√25 = r
5 = r
d = 2r
d = 2×5
d = 10
Semoga membantu