In a plane three points P,Q,R, not on a line, are given. Let k,l,m be positive numbers. Construct a triangle ABC whose sides pass through P,Q, and R such that
P divides the segment AB in the ratio 1:k,
Q divides the segment BC in the ratio 1:l, and
R divides the segment CA in the ratio 1:m. ratiogeometry unsolvedgeometry