Which is the correct relation of radius and diameter?

r = 2D

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D = 2r

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r = D

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r = 3D

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Solution

The correct option is B
D = 2r

Diameter = 2 $\times$ radius (or) twice the radius
$∴$ D = 2r is the correct relation between them.

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Similar questions

Assertion: A diameter of a circle is the longest chord of the circle and all diameters have equal length.

Reason: Length of a diameter = radius.

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