Question

Choose the correct answer

The length of the longest chord of a circle of radius $2.6cm$ is ______

• A. $1.3cm$
• B. $4.3cm$
• C. $8.2cm$
• D. $5.2cm$

Answer 1

The correct option is D

$5.2cm$

The longest chord of a circle is the diameter of the circle.

So, $Diameter=2\times Radius$

$=2\times 2.6$

$=5.2cm$

Hence the length of longest chord of a circle is $5.2cm$.