See all short problems arranged by curriculum topic in the short problems collection

$PQR$ is a triangle and $S$ is a point on $QR$.
$QP=QR=9$ cm and $PR = PS =6$ cm.
What is the length of $SR$?

If you liked this problem, here is an NRICH task which challenges you to use similar mathematical ideas.

This problem is taken from the UKMT Mathematical Challenges.