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.

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Solution

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 =

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A car has two wipers which do not overlap. Each wiper has a blade of length $25 c m$ sweeping through an angle of $115^{\circ}$ . Find the total area cleaned at each sweep of the blades.

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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.

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 =

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 =