Answer:
The answer is C
) 8
As square root of 16 is 4 which is radius
So times that by 2 gives you 8
Step-by-step explanation:
Answer:
<h2>a = 400/21, b = 580/21</h2>
Step-by-step explanation:
Small triangles are similar. Therefore, the sides are proportional
<em>cross multiply</em>
<em>divide both sides by 21</em>

For b, we can use the Pythagorean theorem:

Can you give more information?