Construction in GCLC language

dim 120 120

point A 80 95
point B 20 40
point C 110 40

color 220 0 0
fontsize 11

cmark_t A
cmark_b B
cmark_b C
color 0 0 0
fontsize 10


drawsegment A B
drawsegment A C
drawsegment B C

% Non-degenerate conditions: 
% Determination conditions: