How can you use the chart to find the length and width of a figure with an area of 100 square feet?

Well, I don't see a chart but I will try! If your shape was a square then one of your side lengths would be 10. If it was a a rectangle then your base and height would be 10 and 10. If it was a triangle then your base could be 10 and your height would be 20. If it was a parallelogram then your base and height would be 10. It it was a trapezoid then your first base would 8 and the other base would be 12 and your height would be 10. Lastly, if your shape was a circle then your radius would be 10. I am sorry if I did not answer your question but I hope this helps! Have good day!