Construction in GCLC language
dim 120 120
point H_{b} 89.36 77.83
point H 80 72.73
color 220 0 0
fontsize 11
cmark_rt H_{b}
cmark_rt H
color 0 0 0
fontsize 10
% point C is given by the problem setting, but it has to belong to the line b which is constructible from the others objects given
% DET: points H_{b} and H are not the same
% Constructing a line h_{b} which passes through point H_{b} and point H
line h_{b} H_{b} H
color 200 200 200
drawline h_{b}
color 0 0 0
% Constructing a line b which is perpendicular to line h_{b} and which passes through point H_{b}
perp b H_{b} h_{b}
color 200 200 200
drawline b
color 0 0 0
% Constructing a point P_{\_G49367} with coordinates (10,30)
point P_{\_G49367} 10 30
cmark_r P_{\_G49367}
% Constructing a line L_{\_G49370} which passes through point H and point H_{b}
line L_{\_G49370} H H_{b}
color 200 200 200
drawline L_{\_G49370}
color 0 0 0
% Constructing a line L_{\_G49373} which is perpendicular to line L_{\_G49370} and which passes through point H_{b}
perp L_{\_G49373} H_{b} L_{\_G49370}
color 200 200 200
drawline L_{\_G49373}
color 0 0 0
% Constructing a line L_{\_G49376} which passes through point H and point P_{\_G49367}
line L_{\_G49376} H P_{\_G49367}
color 200 200 200
drawline L_{\_G49376}
color 0 0 0
% Constructing a point C which belongs to line L_{\_G49376} and line L_{\_G49373}
intersec C L_{\_G49376} L_{\_G49373}
color 220 0 0
fontsize 11
cmark_b C
color 0 0 0
fontsize 10
% DET: points C and H are not the same
% Constructing a line h_{c} which passes through point C and point H
line h_{c} C H
color 200 200 200
drawline h_{c}
color 0 0 0
% Constructing a point A such that CA/CH_{b}=0.23110648136144124
towards A C H_{b} 0.23110648136144124
cmark_t A
color 200 200 200
drawsegment C H_{b}
color 0 0 0
% Constructing a point M_{b} such that AM_{b}/AC=0.5
towards M_{b} A C 0.5
cmark_rt M_{b}
color 200 200 200
drawsegment A C
color 0 0 0
% NDG: points A and M_{b} are not the same
% Constructing a circle k(M_{b},C) whose center is at point M_{b} and which passes through point A
circle k(M_{b},C) M_{b} A
color 200 200 200
drawcircle k(M_{b},C)
color 0 0 0
% NDG: line h_{c} and circle k(M_{b},C) intersect% DET: points C and H_{c} must be different
% Constructing a point P_{\_G50056} which is a foot of the point M_{b} on the line h_{c}
foot P_{\_G50056} M_{b} h_{c}
cmark_r P_{\_G50056}
color 200 200 200
drawline M_{b} P_{\_G50056}
color 0 0 0
% Constructing a point H_{c} which is an image of the point C in the symmetry to point/line P_{\_G50056}
sim H_{c} P_{\_G50056} C
cmark_lt H_{c}
% DET: points H_{c} and A are not the same
% Constructing a line c which passes through point H_{c} and point A
line c H_{c} A
color 200 200 200
drawline c
color 0 0 0
% NDG: lines h_{b} and c are not parallel% DET: lines h_{b} and c are not the same
% Constructing a point B which belongs to line h_{b} and line c
intersec B h_{b} c
cmark_b B
drawsegment A B
drawsegment A C
drawsegment B C
% Non-degenerate conditions: lines h_{b} and c are not parallel; line h_{c} and circle k(M_{b},C) intersect; points A and M_{b} are not the same
% Determination conditions: lines h_{b} and c are not the same; points H_{c} and A are not the same; points C and H_{c} must be different; points C and H are not the same; points H_{b} and H are not the same