hi if someone could help me with the following question it will be great.
using euclidean geometry proof:
Let S be any point inside a triangle ABC and let SP; SQ; SR be
perpendicular to the sides BC;CA;AB respectively, then
SA + SB + SC >= 2 (SP + SQ + SR)
Hint: Set P1; P2 be the feet of the perpendiculars from R and Q upon
BC. Prove rst that (i) QR >= P1P2 and (ii) PRP1 and SBR are
similar triangles.