If r = 10 cm, l = 20 cm, then the value of θ (in radian) is
If r = 10 cm, l = 20 cm, then the value of θ (in radian) is
(A) 4
(B) 2
(C) 1
(D) 3
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If r = 10 cm, l = 20 cm, then the value of θ (in radian) is
(A) 4
(B) 2
(C) 1
(D) 3