The Endpoints of a Diameter of a Circle Are Shown $( - 1,0 )$

question 347

Multiple Choice

The endpoints of a diameter of a circle are shown. Find the center and radius of the circle.
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• A) center: \(( - 1,0 )\); radius: 4
• B) center: \(( 0 , - 1 )\); radius: \(2 \sqrt { 5 }\)
• C) center: \(( - 1,0 )\); radius: \(2 \sqrt { 5 }\)
• D) center: \(( 0 , - 1 )\); radius: 20

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