The length of the rope Leo needs to purchase will be 45.3125 ft.
How can you find out surface area ?
Surface area is calculated for common forms such as circles, triangles, parallelograms, rectangles, trapezoids, and so on.
When a form that isn't a standard figure appears, we slice it into standard shapes to get its area. The area of those component forms is then calculated and added together.
The surface area of the prism is,35 ft²
[tex]\rm A_s=2\times A_b+P\times h \\\\ 35=2 \times 3 +BP \times 3.2\\\\\ 35=6+3.2 BP\\35-6=3.2BP\\\\ BP=\frac{29}{3.2} \\\\BP=9.0652\ ft[/tex]
The length of the rope Leo needs to purchase;
L=5 ×9.0652
L=45.3125 ft
Hence,the length of the rope Leo needs to purchase will be 45.3125 ft.
To learn more about the area of a composite figure, refer:
https://brainly.com/question/10254615
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