Question 5
Calculate the length (in cm) of the chord of the circle which is at the distance of the 12 cm from the centre and at the radius of the circle is 13 cm.
Solution
Given : OB = 13 cm and OM = 12 cm
To find : AB = ?
Solution : In right $$\triangle$$ OMB,
=> $$(MB)^2=(OB)^2-(OM)^2$$
=> $$(MB)^2=(13)^2-(12)^2$$
=> $$(MB)^2=169-144=25$$
=> $$MB=\sqrt{25}=5$$ cm
$$\therefore$$ AB = $$2\times5=10$$ cm
=> Ans - (A)
Get AI Help?
Create a FREE account and get:
- Free SSC Study Material - 18000 Questions
- 230+ SSC previous papers with solutions PDF
- 100+ SSC Online Tests for Free
