1. **Problem:** Find the surface area of a rectangular prism with length 11 cm, width 6 cm, and height 3 cm. 2. **Formula:** The surface area (SA) of a rectangular prism is given by: $$SA = 2lw + 2lh + 2wh$$ where $l$ is length, $w$ is width, and $h$ is height. 3. **Substitute values:** $$SA = 2(11)(6) + 2(11)(3) + 2(6)(3)$$ 4. **Calculate each term:** $$2(11)(6) = 132$$ $$2(11)(3) = 66$$ $$2(6)(3) = 36$$ 5. **Sum all terms:** $$SA = 132 + 66 + 36 = 234$$ 6. **Answer:** The surface area of the rectangular prism is **234 cm\textsuperscript{2}**.