1.

l = 5 m

w = 8 m

h = 12 m

V= 480m^3

2.

r = 10 cm

h = 15 cm

V = 1500π(cm)3

volume = 1/3 lwh

= 1/3 (5m x 8m x 12m)

= 160 m³

volume = πr²h

= (3.14) 10 cm² x 15 cm

= 4710 cm³