This graph shows circle
U
.
Does point
V
3
,
7
lie on circle
U
?
Complete the paragraph to explain one way to find out.
First, use the graph to find the radius of circle 
U
. Then, use the  to find that 
segment
U
V
 has a length of . Since 
segment
U
V
  the same length as the radius, 
V
  on circle 
U
.
ref_doc_title.

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