Build a line Line1, using Line
,
and define a segment AB on the line itself, using
Segment
.
Describe two circles, using
Circle with center point
, centered
in A and in B, respectively. They intersect in two points; C is the one above
the segment AB.
Drow the perpendicular to AB passing on C; it intersects AB in
a point 1; drow the
perpendicular to AB passing on A. It intersects the circle
centered in A in 2.
Build a circle centered in 1, with radius 1-2, using
Circle with center point
.
It intersects the line in 3.
Build a circle centered in B, with radius B3, using
Circle with center point
.
It intersects the circle centered in A in a point D and the perpendicular passing
on C in a point E.
Build a circle centered in E, with radius ED, using
Circle with center point
.
It intersects the circle centered in B in a point F.
Build five segments: AB, BF, FE, ED, DA, using
Segment
. ABFED is
the desired regular pentagon.