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Diameter of circle whose radius is ‘r’ is

  • a)
    r/2

  • b)
    2r

  • c)
    2 + r

  • d)
    None of these

Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Diameter of circle whose radius is ‘r’ isa)r/2b)2rc)2 + rd...
The relationship between a radius and a diameter is expressed by the formula, diameter = 2 × radius.
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Most Upvoted Answer
Diameter of circle whose radius is ‘r’ isa)r/2b)2rc)2 + rd...

Explanation:

The diameter of a circle is the distance across the circle passing through the center. It is always twice the length of the radius.

Calculation:
- The formula for the diameter of a circle is: Diameter = 2 * Radius
- Given that the radius of the circle is 'r'
- Therefore, the diameter of the circle = 2 * r = 2r

So, the correct answer is option 'B' (2r).
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