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.

Asked by Pragya Singh | 1 year ago |  100

1 Answer

Solution :-

Given,

Radius (r) = 25 cm

Sector angle (θ) = 115°

Since there are 2 blades,

The total area of the sector made by wiper = 2×(\( \dfrac{θ}{360°}\))×πr2

= 2×(\( \dfrac{115}{360}\))×(\( \dfrac{22}{7}\))×252

= \( 2×\dfrac{158125}{252 } \)cm2

= \(\dfrac{ 158125}{126 } \)= 1254.96 cm2

Answered by Abhisek | 1 year ago

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