I'm not sure you are asking the right question? it tells you what the radius is right there. What is the question asking
Answer:
Option C. 
Step-by-step explanation:
we know that
Triangles ADE and ABC are similar by AA similarity postulate
AB=2AD
Apply proportion

Find the length of segment DE

600 is the answer. 600x10 is 6000
Answer: 2. |3x-2|= 14
|3x-2|=2.7/2
|3x-2|=7
x∈ {3,-5/3
Step-by-step explanation: \frac{5}{3}