Synthetic fibers are made from raw materials such as petroleum, based on chemicals or petrochemicals [20]. These materials are polymerized into a long, linear chemical with different chemical compounds and are used to produce various types of fibers.
the answer is 14
high school kid
Hello there, this problem is just basic addition, here is what it would look like

Solve it and we get 78.21
My Answer: Pentagons( First image)
Hope I helped! :D