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A chord of a circle radius 3cm subtends an angle ...

A chord of a circle radius 3cm subtends an angle of 60° on the circumference of he circle. Find the length of the chord

A.

32

B.

32

C.

3

D.

3cm

Correct answer is D

Length of chord = 2r×sin(θ2)

= 2×3×sin(602)

= 2×3×12

= 3 cm.