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What is the length of the radius, r?

What is the length of the radius, r?-example-1
User Slammaster
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2 Answers

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The answer is {A} Hope this helps! :)

User Sambeth
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2 votes

Answer:

Option B. (x - h)² + (y - k)² = r²

Explanation:

Equation of a circle which passes through a point P(x, y) and center at (0, 0) then the equation of the circle is represented by

x² + y² = r²

If center of the circle is moved from origin (0, 0) to (h, k) then we have to find the equation.

(x - h)² + (y - k)² = PQ² = r² [Distance between two points P and Q]

Therefore option B is the correct answer.

User Adam Lavin
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