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A car has two wipers which do not overlap. Each wiper has blade of length 25 cm sweeping through an angle of 115°.

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A car has two wipers which do not overlap. Each wiper has blade of length 25 cm sweeping through an angle of 115°. Find the total area cleaned at each sweep of the blades.[Use π = 22/7]

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It can be observed from the figure that each blade of wiper will sweep an area of a sector of 115° in a circle of 25 cm radius.

Area of such sector = 

Area swept by 2 blades = 2 x 158125/252

=158125/126 cm2

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