tolong kerjakan beserta cara dan penjelasannya

L = sxs <=> 196 = s^2 <=> s = 14 cm = rusuk kubus = diameter bola

d= 14cm = 2r <=> 2r =14 <=> r = 7cm

Lp bola = 4 pi r^2
Lp bola = 4 x 22/7 x 7 x 7
Lp bola = 4 x 22 x 7 = 616cm^2 (B)