Question 885202
volume of cylinder = π(r^2)h 
3m = 300cm
diameter = 20cm, so radius = 20cm/2 = 10cm

volume = π(r^2)h
       = π((10cm)^2)(300cm)
       = π(100cm^2)(300cm)
       = π(30000cm^2)
       = (30000π)cm^2