Radius of a circle is 10 cm. Angle made by chord AB at the centre of this circle is 600. What is the length of this chord?

The length of a chord in a circle of radius r that subtends an angle θ at the center is given by: chord length = 2r sin(θ/2). Here r = 10 cm and θ = 60° (assuming 600 is a typo for 60°). Chord length = 2 × 10 × sin(60°/2) = 20 × sin(30°) = 20 × 0.5 = 10 cm. If the angle is literally 600°, then chord length = 20 × sin(300°) = 20 × (-√3/2) which is negative and doesn't make physical sense. Assuming standard geometric context, the angle is 60°, making the chord length 10 cm.