Hello there, and thank you for posting your question here on brainly.
To solve this, you have to use the formula *V = whl*.
The length is 5, the height is 6, and the length is also 6.
Just multiply each number to find the answer.
5 * 6 * 6 ====> 180
The volume of the rectangular prism is 180.
Hope this helped! ☺♥