Mathematics

Problem

In a circle, chord

AB

16\,\text{cm}

long and is

6\,\text{cm}

from the centre

O

. Another chord

CD

12\,\text{cm}

long. How far is chord

CD

from the centre? a)

6\,\text{cm}

8\,\text{cm}

4.5\,\text{cm}

10\,\text{cm}