Question 28
Circle TheoremsA chord is drawn 5 cm away from the centre of a circle of radius 13 cm. Calculate the length of a chord.
- A.7cm
- B.9cm
- C.12cm
- D.24cm
Show the answer and explanation
Answer: D (24cm)
Explanation
Half the chord = √(132 − 52) = √144 = 12cm, so the chord is 24cm.