ANSWER
[tex]450 {cm}^{3} [/tex]
EXPLANATION
The prism shown is a rectangular prism or cuboid.
The volume of a cuboid is given by:
[tex]Volume=l \times b \times h[/tex]
From the diagram, the length is l=15cm ,the breadth is b=10cm and the height is h=3cm.
We substitute the values into the formula to obtain,
[tex]Volume=15 \times 10 \times 3[/tex]
We simplify to get,
[tex]Volume=450 {cm}^{3} [/tex]
