Question

The radius of a circle is $k$ times its diameter, where $k=$

• A. $1$
• B. $2$
• C. $\frac{1}{3}$
• D. $\frac{1}{2}$

Answer 1

The correct option is D $\frac{1}{2}$

We know that,
[Diameter = 2 × Radius]
Radius = $\frac{1}{2}$ × Diameter $\dots \left(1\right)$
Given data,
Radius = $k$ × Diameter $\dots \left(2\right)$

On comparing $\left(1\right)$ and $\left(2\right)$, we get $k$ = $\frac{1}{2}$
Radius of a circle is half of its diameter
$\therefore k=\frac{1}{2}$