Question

In the figure below, line PR and line SR are tangent to circle O (see attachment). If OT = 11 cm, and PR = 60 cm, what is the length of line OR? Can someone show me how to do this?

Answer 1

well OT, OS and OP are all radii of a circle so all are equal in length

and a radius and tangent form a right triangle...

so you know OP and PR and there is a right angle at P

so use pythagoras' theorem to find OR

hope it helps

Answer 2

All I have to do is

\[60^{2} + 11^{2} = 3721\]
\[\sqrt{3721} = 61cm\]?