Maths-
General
Easy
Question
Area of the circle in which a chord of length 
makes an angle p/2 at the centre is
The correct answer is:
Let AB be the chord of length , O be the centre of the circle and let OC be the perpendicular from O on AB. Then AC = BC = 
In DOBC, OB = BC cosec 45° = 
\ Area of the circle = p (OB)2 = p.
Hence (c) is the correct answer.
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