According to structural mechanics and strength of materials, Plastic pipe is typically rated according to its <u>thickness</u> and its ability to carry hot water.
<h3>What is the Thickness of Material?</h3>
The <em><u>thickness of Material</u></em> is the distance between the two surfaces of the material. That is the distance between the internal and external surface.
The material thickness of plastic determines its durability and ability to withstand pressure and temperature.
Hence, in this case, it is concluded that the correct answer is <u>thickness</u>.
Learn more about material thickness here: brainly.com/question/4658739
