Respuesta :

MuridCikgu

Known :

w = 12 feet

h = 18 feet

V = 3.240 feet³

Asked :

l = ...?

Answer :

V = l × w × h

3240 = l × 12 × 18

3240 = 216 l

l = 3240 ÷ 216

l = 15 feet

So, the length is 15 feet

Hope it helps and is useful :)