Construction in GCLC language
dim 120 120
point E_{b} 50 56.36
point H_{c} 68.91 84.83
color 220 0 0
fontsize 11
cmark_r E_{b}
cmark_lt H_{c}
color 0 0 0
fontsize 10
% point H_{a} is given by the problem setting, but it has to belong to the circle k(E_{b},B) which is constructible from the others objects given
% NDG: points H_{c} and E_{b} are not the same
% Constructing a circle k(E_{b},B) whose center is at point E_{b} and which passes through point H_{c}
circle k(E_{b},B) E_{b} H_{c}
color 200 200 200
drawcircle k(E_{b},B)
color 0 0 0
% Generating number V[_G43832] with value 0.3266611733732241
number V[_G43832] 0.3266611733732241
% Calculating value V[_G43853] using formula V[_G43832]*360
expression V[_G43853] { V[_G43832]*360 }
% Constructing a point H_{a} which is an image of the point V[_G43853] in a rotation around the point E_{b} for the angle H_{c}
rotate H_{a} E_{b} V[_G43853] H_{c}
color 220 0 0
fontsize 11
cmark_b H_{a}
color 0 0 0
fontsize 10
color 200 200 200
drawarc_p E_{b} H_{c} V[_G43853]
color 0 0 0
% DET: points H_{a} and E_{b} are not the same
% Constructing bisector m(H_{a}E_{b}) of the segment H_{a}E_{b}
med m(H_{a}E_{b}) H_{a} E_{b}
color 200 200 200
drawline m(H_{a}E_{b})
color 0 0 0
color 200 200 200
drawsegment H_{a} E_{b}
color 0 0 0
% DET: points H_{a} and H_{c} are not the same
% Constructing bisector m(H_{a}H_{c}) of the segment H_{a}H_{c}
med m(H_{a}H_{c}) H_{a} H_{c}
color 200 200 200
drawline m(H_{a}H_{c})
color 0 0 0
color 200 200 200
drawsegment H_{a} H_{c}
color 0 0 0
% NDG: lines m(H_{a}H_{c}) and m(H_{a}E_{b}) are not parallel% DET: lines m(H_{a}H_{c}) and m(H_{a}E_{b}) are not the same
% Constructing a point N which belongs to line m(H_{a}H_{c}) and line m(H_{a}E_{b})
intersec N m(H_{a}H_{c}) m(H_{a}E_{b})
cmark_r N
% NDG: points H_{a} and N are not the same
% Constructing a circle k(N,M_{a}) whose center is at point N and which passes through point H_{a}
circle k(N,M_{a}) N H_{a}
color 200 200 200
drawcircle k(N,M_{a})
color 0 0 0
% NDG: line m(H_{a}H_{c}) and circle k(N,M_{a}) intersect% DET: points E_{b} and M_{b} must be different
% Constructing a point M_{b} which is an image of the point E_{b} in the symmetry to point/line N
sim M_{b} N E_{b}
cmark_rt M_{b}
% Generating number V[_G44618] with value 0.3266611733732241
number V[_G44618] 0.3266611733732241
% Calculating value V[_G44639] using formula V[_G44618]*360
expression V[_G44639] { V[_G44618]*360 }
% Constructing a point A which is an image of the point V[_G44639] in a rotation around the point M_{b} for the angle H_{a}
rotate A M_{b} V[_G44639] H_{a}
cmark_t A
color 200 200 200
drawarc_p M_{b} H_{a} V[_G44639]
color 0 0 0
% Constructing a point C such that AC/AM_{b}=2
towards C A M_{b} 2
cmark_b C
color 200 200 200
drawsegment A C
color 0 0 0
% DET: points A and H_{a} are not the same
% Constructing a line h_{a} which passes through point A and point H_{a}
line h_{a} A H_{a}
color 200 200 200
drawline h_{a}
color 0 0 0
% DET: points H_{c} and C are not the same
% Constructing a line h_{c} which passes through point H_{c} and point C
line h_{c} H_{c} C
color 200 200 200
drawline h_{c}
color 0 0 0
% NDG: lines h_{a} and h_{c} are not parallel% DET: lines h_{a} and h_{c} are not the same
% Constructing a point H which belongs to line h_{a} and line h_{c}
intersec H h_{a} h_{c}
cmark_rt H
% Constructing a point B such that E_{b}B/E_{b}H=-1
towards B E_{b} H -1
cmark_b B
color 200 200 200
drawsegment H B
color 0 0 0
drawsegment A B
drawsegment A C
drawsegment B C
% Non-degenerate conditions: lines h_{a} and h_{c} are not parallel; line m(H_{a}H_{c}) and circle k(N,M_{a}) intersect; points H_{a} and N are not the same; lines m(H_{a}H_{c}) and m(H_{a}E_{b}) are not parallel; points H_{c} and E_{b} are not the same
% Determination conditions: lines h_{a} and h_{c} are not the same; points H_{c} and C are not the same; points A and H_{a} are not the same; points E_{b} and M_{b} must be different; lines m(H_{a}H_{c}) and m(H_{a}E_{b}) are not the same; points H_{a} and H_{c} are not the same; points H_{a} and E_{b} are not the same