Question

If the radius of a circle is a multiple of 3, then the diameter will be a multiple of

• A. 3
• B. 6
• C. both 3 and 6
• D. None

Answer 1

The correct option is C both 3 and 6

Given that

The radius of a circle is a multiple of 3.

So, the radius of the circle can be 3$n$, where $n$ is any natural number.

Now, Diameter of a circle = radius $\times$ 2 = 3$n$ $\times$ 2 = 6 $\times n$

Hence, the diameter of the circle is a multiple of both 3 and 6.