Орёл Никита ДЗ1(Asymptote) рисунок 1

import geometry;
import patterns;
import markers ;
//import graph;
//import three;
defaultpen(fontsize(11pt));
dotfactor=5;
//labelmargin=0.25;
size(9cm,0);
point A,B,C,E1,L,O,K;
A=(0,0); C = 5*dir(0); B=3.5*dir(74);
line AB=line(A,B); line AC = line(A,C);
line BC=line(B,C);
line l1 = bisector(AB,AC);
line l2 = bisector(AB,BC);

E1 = intersectionpoint(l1,BC);
L = intersectionpoint(l2,AC);
O = intersectionpoint(l1,l2);
K = projection(A,L)*B;
draw(A--C--B--cycle,black+1bp); draw(A--E1);
draw(B--L); draw(B--K);
draw(A--L, white+opacity(0), StickIntervalMarker(2, 1, size=0.15cm));

dot(A,black+4bp); dot(A,white+3bp);
dot(B,black+4bp); dot(B,white+3bp);
dot(C,black+4bp); dot(C,white+3bp);
dot(E1,black+4bp); dot(E1,white+3bp);
dot(L,black+4bp); dot(L,white+3bp);
dot(O,black+4bp); dot(O,white+3bp);
dot(K,black+4bp); dot(K,white+3bp);

markangle(1,radius=0.5cm,C,A,E1);
markangle(1,radius=0.6cm,E1,A,B);
markangle(2,radius=0.6cm,A,B,L);
markangle(2,radius=0.4cm,L,B,C);
markrightangle(size=0.25cm, B,K,A);

label("$A$",A,SW);  label("$C$",C,SE);  label("$B$",B,N);
label("$E$",E1,NE); label("$L$",L,S); label("$O$",O,1.1W);
label("$K$",K,NE);
label("$3a$",A--L,S); label("$b$",L--C,S);
label("$6a$",A--B,W); label("$4a$",B--O,E); label("$2a$",O--L,E);
label("$2b$",E1--C,2E);