Construction in GCLC language
dim 120 120
point M_{b} 95 67.5
point N 72.5 61.93
color 220 0 0
fontsize 11
cmark_rt M_{b}
cmark_r N
color 0 0 0
fontsize 10
% point H_{b} is given by the problem setting, but it has to belong to the circle k(N,M_{a}) which is constructible from the others objects given
% DET: points M_{b} and N are not the same
% Constructing a line m(H_{a}H_{c}) which passes through point M_{b} and point N
line m(H_{a}H_{c}) M_{b} N
color 200 200 200
drawline m(H_{a}H_{c})
color 0 0 0
% NDG: points M_{b} and N are not the same
% Constructing a circle k(N,M_{a}) whose center is at point N and which passes through point M_{b}
circle k(N,M_{a}) N M_{b}
color 200 200 200
drawcircle k(N,M_{a})
color 0 0 0
% Generating number V[_G48862] with value 0.31276306381218805
number V[_G48862] 0.31276306381218805
% Calculating value V[_G48883] using formula V[_G48862]*360
expression V[_G48883] { V[_G48862]*360 }
% Constructing a point H_{b} which is an image of the point V[_G48883] in a rotation around the point N for the angle M_{b}
rotate H_{b} N V[_G48883] M_{b}
color 220 0 0
fontsize 11
cmark_rt H_{b}
color 0 0 0
fontsize 10
color 200 200 200
drawarc_p N M_{b} V[_G48883]
color 0 0 0
% DET: points H_{b} and M_{b} are not the same
% Constructing a line b which passes through point H_{b} and point M_{b}
line b H_{b} M_{b}
color 200 200 200
drawline b
color 0 0 0
% NDG: line m(H_{a}H_{c}) and circle k(N,M_{a}) intersect% DET: points M_{b} and E_{b} must be different
% Constructing a point E_{b} which is an image of the point M_{b} in the symmetry to point/line N
sim E_{b} N M_{b}
cmark_r E_{b}
% DET: points E_{b} and H_{b} are not the same
% Constructing a line h_{b} which passes through point E_{b} and point H_{b}
line h_{b} E_{b} H_{b}
color 200 200 200
drawline h_{b}
color 0 0 0
% Constructing a point A such that H_{b}A/H_{b}M_{b}=0.31276306381218805
towards A H_{b} M_{b} 0.31276306381218805
cmark_t A
color 200 200 200
drawsegment H_{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
% 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: circles k(N,M_{a}) and k(M_{b},C) intersect% DET: circles k(N,M_{a}) and k(M_{b},C) are not the same
% Constructing points H_{a} and H_{c} which are in intersection of k(N,M_{a}) and k(M_{b},C)
intersec2 H_{a} H_{c} k(N,M_{a}) k(M_{b},C)
cmark_b H_{a}
cmark_lt H_{c}
% 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
% NDG: lines h_{b} and h_{a} are not parallel% DET: lines h_{b} and h_{a} are not the same
% Constructing a point H which belongs to line h_{b} and line h_{a}
intersec H h_{b} h_{a}
cmark_rt H
% Constructing a line L_{\_G49782} which passes through point N and point H
line L_{\_G49782} N H
color 200 200 200
drawline L_{\_G49782}
color 0 0 0
% Constructing a point P_{\_G49883} with coordinates (0,0)
point P_{\_G49883} 0 0
cmark_r P_{\_G49883}
% Constructing a point P_{\_G49807} such that NP_{\_G49807}/NP_{\_G49883}=-1
towards P_{\_G49807} N P_{\_G49883} -1
cmark_r P_{\_G49807}
color 200 200 200
drawsegment P_{\_G49883} P_{\_G49807}
color 0 0 0
% Constructing a point P_{\_G49852} such that NP_{\_G49852}/NP_{\_G49883}=3
towards P_{\_G49852} N P_{\_G49883} 3
cmark_r P_{\_G49852}
color 200 200 200
drawsegment N P_{\_G49852}
color 0 0 0
% Constructing a line L_{\_G49813} which passes through point H and point P_{\_G49852}
line L_{\_G49813} H P_{\_G49852}
color 200 200 200
drawline L_{\_G49813}
color 0 0 0
% Constructing a line L_{\_G49776} which contains the point P_{\_G49807} and is parallel to the line L_{\_G49813}
parallel L_{\_G49776} P_{\_G49807} L_{\_G49813}
color 200 200 200
drawline L_{\_G49776}
color 0 0 0
% Constructing a point G which belongs to line L_{\_G49776} and line L_{\_G49782}
intersec G L_{\_G49776} L_{\_G49782}
cmark_t G
% Constructing a point B such that M_{b}B/M_{b}G=3
towards B M_{b} G 3
cmark_b B
color 200 200 200
drawsegment M_{b} B
color 0 0 0
drawsegment A B
drawsegment A C
drawsegment B C
% Non-degenerate conditions: lines h_{b} and h_{a} are not parallel; circles k(N,M_{a}) and k(M_{b},C) intersect; points A and M_{b} are not the same; line m(H_{a}H_{c}) and circle k(N,M_{a}) intersect; points M_{b} and N are not the same
% Determination conditions: lines h_{b} and h_{a} are not the same; points A and H_{a} are not the same; circles k(N,M_{a}) and k(M_{b},C) are not the same; points E_{b} and H_{b} are not the same; points M_{b} and E_{b} must be different; points H_{b} and M_{b} are not the same; points M_{b} and N are not the same