[-/3 Points] DETAILS TANAPMATH/ 10.5.009. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Minimizing Costs A pencil cup with a capacity of 12 in." is to be constructed in the shape of a rectangular box with a square base and an open top. If the material for the sides costs 18c/in. and the material for the base costs 54e/in.", what should the dimensions of the cup be to minimize the construction cost? height in length width In