Need help if someone can show how this is done plz

8.5

Step-by-step explanation:

use pythagorean theorem to find the other side of the tirange.

fill in what you know:

then solve for c then .

then take the square root of both sides because you just want c.

. then you get that c = 17. now, the radius is half of the diameter. the diameter is the segment ab, which we found to = 17, so if the radius if half the diameter, we divide 17 by 2 and we get 8.5. so, the radius of the circle is 8.5.

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