Constructions and Loci for GCSE and IGCSE Maths; circumcircle


Constructions and Loci for GCSE, IGCSE and GCE O Level

A circle that touches the vertices of a tringle from outside is called a circumcircle.

In order to construct it, the following simple steps can be followed in order:

  1. Construct the three perpendicular lines of each side.
  2. Find the point where the lines in step 1 intersect. 
  3. Using the point in step 2) as the centre. just complete the circle with your compasses.
  4. It is the circumcircle.


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