Question

What is RW? I've included a photo of the problem.

Answer 1

Ok, so

Let me draw the situation here:

We know that:

UT=ST=7

Notice that radius is the same from the center.

Now, if all side RT is 17, then, RS = 10, Like this:

RS = RT-ST = 17 - 7 = 10.

And, RW = RS , which is 10.

Therefore, RW = 10