Answer:
8 units
Step-by-step explanation:
We can use the distance formula. Recall the distance formula:
Let (-11,7) be and , and (-5,1) be and
Plug in the numbers:
Half of the distance from one side, through the middle, to the other side.
circumference: 3.14*radius*2
A-2b=-10
b=-10-a.
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