Construction in GCLC language

dim 120 120

point B 20 40
point M_{a} 65 40
point M_{c} 50 67.5

color 220 0 0
fontsize 11

cmark_b B
cmark_b M_{a}
cmark_lt M_{c}
color 0 0 0
fontsize 10


% Constructing a point C such that BC/BM_{a}=2
towards C B M_{a} 2 
cmark_b C
color 200 200 200
drawsegment B C 
color 0 0 0



% Constructing a point A such that BA/BM_{c}=2
towards A B M_{c} 2 
cmark_t A
color 200 200 200
drawsegment B A 
color 0 0 0



drawsegment A B
drawsegment A C
drawsegment B C

% Non-degenerate conditions: 
% Determination conditions: