Question

if the volume of a right circular cylinder is 320m cube. and the area of its base is 80m square . find the height

Answer 1

let dimensions of the cylinder
radius = r m
height = h m
volume (V) = 320 m³
πr²h= 320---(1)
given 
base area = 80 m²
πr² = 80 ---(2)
divide (1) with (2)
(πr²h)/(πr²) = 320 /80
h= 4 m
therefore 
height of the cylinder = h= 4 m

Answer 2

Volume of right circular cylinder = 320 cm³
Area of the base = 80m²

πr²h = 320..............(i)
πr² = 80

Putting the value of πr² in eq (i),
80h = 320
h = 4m

∴ The height of the cylinder= 4m