For making well,
it remains you to make the peripheric circles that will finish your
drawing =
13
The inside peripheric
circle will have the radius which goes from the center to the edge of
one of the circles which form the angles of the pentagon, as you can
guess it.
But for the external
peripheric circle , the most elegant solution is to take the measurement
of the pupil of the "vesica piscis" to space it inside peripheric
circle =
