diameter suatu tabung 20cm jika tinggi 15cm Π:3,14 hitunglah : volume luas sisi

d = 20 cm
r = 10 cm
t = 15 cm

Volume tabung
= π x r² x t
= 3,14 x 10 cm x 10 cm x 15 cm
= 4.710 cm³

Luas permukaan tabung
= 2 x π x r ( r + t )
= 2 x 3,14 x 10 cm ( 10 cm + 15 cm )
= 62,8 cm x 25 cm
= 1.570 cm²