Question

The relation between radius and diameter of a circle is _________.

• A. $Radius=2\times diameters$
• B. $Radius=diameter+2$
• C. $Diameter=radius+2$
• D. $Diameter=2\left(radius\right)$

Answer 1

The correct option is D $Diameter=2\left(radius\right)$

We know, radius is the distance from the centre of a circle to any point on its circumference.

Also, diameter of the circle is a straight line which passes through centre and whose end points lie on the circle.

So, radius is half of the diameter.

Thus, $Diameter=2\left(radius\right)$.

Hence, option $D$ is correct.