Jawaban:
3.092,16 cm²
Penjelasan dengan langkah-langkah:
r = 24/2 = 12 cm
t = 35 cm
Lseng = Llingkaran + Lselimut tabung
Lseng = πr² + 2πrt
Lseng = (3,14 x 12²) + (2 x 22/7 x 12 x 35)
Lseng = (3,14 x 144) + (44 x 12 x 5)
Lseng = 452,16 + 2.640
Lseng = 3.092,16 cm²