Construction in GCLC language
dim 120 120
point A 80 95
point G 70 58.33
point H_{c} 68.91 84.83
color 220 0 0
fontsize 11
cmark_t A
cmark_t G
cmark_lt H_{c}
color 0 0 0
fontsize 10
% Constructing a point M_{a} such that AM_{a}/AG=1.5
towards M_{a} A G 1.5
cmark_b M_{a}
color 200 200 200
drawsegment A M_{a}
color 0 0 0
% DET: points A and H_{c} are not the same
% Constructing a line c which passes through point A and point H_{c}
line c A H_{c}
color 200 200 200
drawline c
color 0 0 0
% NDG: points H_{c} and M_{a} are not the same
% Constructing a circle k(M_{a},B) whose center is at point M_{a} and which passes through point H_{c}
circle k(M_{a},B) M_{a} H_{c}
color 200 200 200
drawcircle k(M_{a},B)
color 0 0 0
% NDG: line c and circle k(M_{a},B) intersect% DET: points H_{c} and B must be different
% Constructing a point P_{\_G14415} which is a foot of the point M_{a} on the line c
foot P_{\_G14415} M_{a} c
cmark_r P_{\_G14415}
color 200 200 200
drawline M_{a} P_{\_G14415}
color 0 0 0
% Constructing a point B which is an image of the point H_{c} in the symmetry to point/line P_{\_G14415}
sim B P_{\_G14415} H_{c}
cmark_b B
% Constructing a point M_{b} such that GM_{b}/GB=-0.5
towards M_{b} G B -0.5
cmark_rt M_{b}
color 200 200 200
drawsegment B M_{b}
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
drawsegment A B
drawsegment A C
drawsegment B C
% Non-degenerate conditions: line c and circle k(M_{a},B) intersect; points H_{c} and M_{a} are not the same
% Determination conditions: points H_{c} and B must be different; points A and H_{c} are not the same