Hello ,Students, SSC CGL Pre 2016 Is near. Only 3 weeks are left. Now It's Important to learn and revise all the important Formulas of advanced maths. We'll provide you all the tricky notes and formulas. these notes are based on the type of questions that are asked in SSC CGL exam.
π radian = 180°
If an arc of length ‘s’ subtends an angle θ radian at the centre of a circle of radius, r then s = rθ.
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