Answer: Option 'B' is correct.
Step-by-step explanation:
Since we have given that
Distance between the center and the chord = 0.7 cm
Radius of the circular ring = 2.5 cm
We need to find length of the chord.
Since it forms a right angle triangle.
So, we will use "Pythagorus theorem":
[tex]H^+=2=B^2+P^2\\\\25.^2+B^2+0.7^2\\\\6.25=B^2+0.49\\\\6.25-0.49=B^2\\\\5.76=B^2\\\\B=2.4\ cm[/tex]
So, Length of chord is given by
[tex]2\times base=2\times 2.4=4.8\ cm[/tex]
Hence, Option 'B' is correct.
