jawab yg bwh no 2xhdjdbdd

volume = kerucut + 1/2 bola
1/3 × 3,14 × 8×8 × 15 + 1/2 × 4/3 × 3,14 ×8×8

luas = 3,14 × 8 ( 8 + 17) + 4 × 3,14 × 8 ×8 × 1/2

17 = s
s^2= 15^2 + 8^2
= 225 +64
= akar 289 =17