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MATHEMATICS - CASE STUDY

    Introduction


Problem Diagram

 

Matthew has just joined a computer company as a software engineer. One of the products that the company developed is an engineering drawing software. In engineering design, engineers often use a curve and revolve it around an axis to create a surface. Matthew's immediate task is to enhance this feature so that it also provides the users with the value of the surface area generated. How can Matthew find the surface area?

   
    Questions


Cycloid
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(14 kB)
 

Determine the surface area generated from revolving a curve around an axis. Take one arch of the cycloid as an example.


  Approach

 
  • Recall that a cycloid is a curve traced by rolling a circle along a flat surface, as shown in the animation.
  • The parametric equations of the cycloid are given by: x = θ - sinθ and y = 1 - cosθ for 0 ≤ θ ≤ 2π.