Answer:
Step-by-step explanation:
THIS PIC IS VERY GOOD BUT NOT CLEAR SO I HELP YOU
The figure can be splitted into 2 trapeziums.
Hence, 14.5 * 16 + 20 * 10 = 432.
The side b = 136 as I think it’s the two equal sides
We know A=L•W so set 43 equal to A. Equation should look like this thus far: 43=L•W. Now when the question says more than we know that means adding. Since we don’t know the width let w=width. So know your equation should look like this: 43=2+w•(w). Knowing this equation you should be able to solve for the dimensions of the sign. If you need help on that let me know.
I have answered your question in the image above I hope this helps.