Jawab Pakai Cara .....

luas permukaan =
L 1/2 bola + L selimut kerucut
r bola = 7 cm
L 1/2 bola = 1/2 × 4πr²
= 2 × 22/7 × 7×7
= 44 × 7 = 308cm²

kerucut
r kerucut = 7 cm
t kerucut = 24cm
s²= t² + r²
= 24² + 7²
= 576 + 49
s= √ 625 = 25 cm
L selimut kerucut = πrs
= 22/7 × 7 × 25
= 22 × 25 = 550 cm²

Luas permukaan bangun=
L 1/2 bola + L selimut kerucut
= 308 + 550 = 858 cm²