Question

A square plate of side $x$ cm is $8$ mm thick. If its volume is $2880$ $c{m}^3;$

then find the value of $x$.

Answer 1

Volume of the plate $=$ Area of the square plate $\times$ thickness $=2880{cm}^3$
$x^2\times 8mm=2880{cm}^3$
$x^2\times 0.8cm=2880{cm}^3$
$x=60cm$