Question 29
Mensuration of Plane ShapesA chord of a circle radius √3cm subtends an angle of 60° on the circumference of the circle. Find the length of the chord.
- A.3/2cm
- B.3/2cm
- C.√3cm
- D.3cm
Show the answer and explanation
Answer: D (3cm)
Explanation
The angle at the centre is 120°. Half the chord = √3 × sin 60° = 3/2, so the chord is 3 cm.