tolong yaa kak.............................

Lp ½ bola
=>2πr²
=>2 • 3,14 • (0,5)²
=>1,57 cm²

Ls tabung
=>2πrt
=>2 • 3,14 • 0,5 • 17
=>53,38 cm²

Ls kerucut
=>πrs
=>3,14 • 0,5 • 1,3
=>2,041 cm²

Total
=>1,57 + 53,38 + 2,041 = 56,691 cm²