Respuesta :
notice, it has a square base, so the base or bottom of the rectangular prism, is a square, that means, length = width = x, length and width both have the same value, let's say "x", check the picture below
![Ver imagen jordy2851](https://us-static.z-dn.net/files/d41/d2f4520285f56155dd4a376f453298ce.jpg)
notice, it has a square base, so the base or bottom of the rectangular prism, is a square, that means, length = width = x, length and width both have the same value, let's say "x", check the picture below