Answer:
The perimeter of the shape is (7x²+10x+81) inches.
Step-by-step explanation:
When finding the perimeter of a shape, you have to add up all the side lengths :
![p = 31 + (4 {x}^{2} + 8x) + (3 {x}^{2} - 5x + 20) + (7x + 30)](https://tex.z-dn.net/?f=p%20%3D%2031%20%2B%20%284%20%7Bx%7D%5E%7B2%7D%20%20%2B%208x%29%20%2B%20%283%20%7Bx%7D%5E%7B2%7D%20%20-%205x%20%2B%2020%29%20%2B%20%287x%20%2B%2030%29)
![p = 31 + 4 {x}^{2} + 8x + 3 {x}^{2} - 5x + 20 + 7x + 30](https://tex.z-dn.net/?f=p%20%3D%2031%20%2B%204%20%7Bx%7D%5E%7B2%7D%20%20%2B%208x%20%2B%203%20%7Bx%7D%5E%7B2%7D%20-%205x%20%2B%2020%20%2B%207x%20%2B%2030%20)
![p =( 7 {x}^{2} + 10x + 81) \: inches](https://tex.z-dn.net/?f=p%20%3D%28%207%20%7Bx%7D%5E%7B2%7D%20%20%2B%2010x%20%2B%2081%29%20%5C%3A%20inches)
Total length of all ribbons = 12 * 3 = 36 inch
Then, number of ribbons = 36/4 = 9
In short, Your Answer would be: 9 sections
Hope this helps!
266.605 is the answer.
Step-by-step explanation:
70.6 + 74.02 + 121.985 = 266.605