Respuesta :

11.66 because AR and RB are equal radii therefore RB = 6 as well then all you need is the Pythagorean theorem 

Answer:

The answer is 8.

Step-by-step explanation:

Keep in mind that the Pythagorean Theorem is what you need to use to answer this. So, your equation would first start out as:

[tex](OR)^{2} + (AR)^{2} = (OB)^{2}[/tex]

Then you'll put the numbers into the equation:

[tex](OR)^{2} + (6)^{2} =(10)^{2}[/tex]

Then you simplify:

[tex](OR)^{2} +36 + 100[/tex]

You'll then want to subtract:

[tex]100-36[/tex]

And your answer will be:

[tex]64[/tex]

People tend to think they're done with the problem and just think that 64 id the answer, however, it's not. You have to find the square root first.

[tex](OR)^{2} = \sqrt{64}[/tex]

[tex](OR)^2 = 8[/tex]

Therefore, your answer will be 8.

Hope this helped.