Question

Match the unknown $x$, for a cuboid of length l, breadth b, height h and volume v (all measures in cm).

• A. 2 cm
• B. 336 cm${}^3$
• C. 3 cm
• D. 8 cm

Answer 1

$v=l\times b\times h$

$v=8\times 7\times 6=336$ cm${}^3$

$h=\frac{v}{l\times b}=\frac{90}{9\times 5}=2\text{cm}$

$b=\frac{v}{l\times h}=\frac{96}{2\times 6}=8\text{cm}$

$l=\frac{v}{b\times h}=\frac{84}{4\times 7}=3\text{cm}$