luas suatu bola diketahui 314 cm². Hitunglah panjang diameter bola tersebut? bantuin pakek cara yah

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
= 2x5
= 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

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