Volume

Cuboid

$l$ = 10        (length of Cuboid)
$w$ = 1        (width of Cuboid)
$h$ = 1        (height of Cuboid)
$v=l\cdot w\cdot h=$ 10

Tetrahedron

$l$ = 10        (length of Tetrahedron)
$w$ = 1        (width of Tetrahedron)
$h$ = 1        (height of Tetrahedron)
$v=l\cdot w\cdot h/6=$ 1.6666666666666667

Sphere

$r$ = 1        (radius of sphere)
$v=\frac{4}{3}\pi \cdot r^3=$ 4.1887902047863905