Question

Ok I need help with this cylinder volume thing

ok so the volume is 20litres and the diameter is 13.5 but I need to find the length value. Length value needs to be in metres

Answer 1

≈1.4 m

Explanation:

V= 20 l= 20 000 cm³

d= 13.5 cm ⇒ r= 13.5 cm / 2= 6.75 cm (assume it is cm)

V= πr²h

h= V/πr²= 20000/3.14*6.75² ≈ 140 cm= 1.4 m

Answer 2

h = 0.139725

Explanation:

Volume of a Cylinder Formula: V = πr²h

You are given V = 20 and r = 6.75.

20 = π(6.75)²h

20/45.5625π = h

h = 0.139725

I'm not sure if this is correct or not.