Since the hollow cylinder pipe in the industry. A hollow cylindrical tube made a straight cut. Do not cut corners or degrees, according to consumer demand. Industrial would like to meet consumer demand by cutting a cylindrical tube with a corner by any means that consumers do not need to cut it. The preparation of such issues has prepared a project to study the surface area and volume of a hollow cylinder with cut any corners. The aim is to find the edges of the cross section of the cylindrical hollow tube that is used to calculate the area and volume of the hollow cylinder of various sizes. Cut with any degree angle to create a template that is used to produce hollow cylindrical tube. By using The Geometer's Sketchpad (GSP) helps to find answers, the study found that the function of a cutting edge in front of the tube is a hollow cylindrical ∫_C ^ D▒f (x) dx = ∫_C ^ D▒ (. a sin (B (xh)) + k) dx, where a represents the amplitude of a class B and C to D is the length of the perimeter. By area and volume can be obtained from this function is directly proportional to the size of the pipe and cut corners. When cutting corners that make up a greater area and volume. In this experiment, the same thickness in each of the hollow cylinder. When the volume and then taken to further build templates. The templates can be used to produce hollow cylindrical tube without the need for tools to cut waste time. And reduce production costs and affect the costs of dealing with and that significantly reduces the waste that is left over scraps from cutting too.
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