var

 ax, ay, bx, by, cx, cy, S, P: real;

begin

 read(ax, ay, bx, by, cx, cy);

 S := 0.5 * abs((ax - cx) * (by - cy) - (bx - cx) * (ay - cy));

 P := sqrt(sqr(bx - ax) + sqr(by - ay));

 P := P + sqrt(sqr(cx - bx) + sqr(cy - by));

 P := P + sqrt(sqr(ax - cx) + sqr(ay - cy));

 write('Периметр ', P, '  площадь ', S)

end.