Question 29
Circle TheoremsA chord of a circle of radius 7 cm is 5 cm from the centre of the circle. What is the length of the chord?
- A.4√6 cm
- B.3√6 cm
- C.6√6 cm
- D.2√6 cm
Show the answer and explanation
Answer: A (4√6 cm)
Explanation
Half the chord = √(72 − 52) = √24 = 2√6, so the chord is 4√6 cm.