Points​ P, Q,​ R, and S are collinear. Point Q is between P and​ R, R is between Q and​ S, and PQ≅RS. If PS=22 and PR=18​, what is the value of​ QR?

Answer 1

If you draw the number line and put the values in you will find that RS = 4 , PS - PR

then we know that RS = PQ

PQ = 4

PR - PQ = 18 - 4 , QR = 14

Answer 2