Abstract:
Suppose that ABCD is a quadrilateral. Then there will be 4 pieces of semiexcircle
on the quadrilateral. In this paper, we will discuss how to determine
the length of the radii of the semi-excircle, but previously we will also be
discussed how to determine the length of 4 new sides formed from the
extension of the sides on □ABCD which has no parallel sides
