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.