Question

The length of the chord of circle whose radius is $5cm$ and perpendicular distance from center is $4cm$

• A. $3$
• B. $6$
• C. $5$
• D. $4$

Answer 1

The correct option is B $6$

The radius of circle is $5$

The distance is given as $4$

The length of chord is given as $2\sqrt{r^2-d^2}2\sqrt{5^2-4^2}2\sqrt{25-16}2\sqrt{9}2\times 3=6cm$