(Q10) A car has two wipers which do not overlap.Each wiper has a blade of length 25cm. sweeping through an angle of 115°.Find the total area cleaned at each sweep of the blades (use π)

Angle made by the each blade = 115°

Total area swept by two blades = Area of the sector with radius 25cm and angle 115° + 115° = 230°

= Area of the sector =
x
360
 ×πr2
=
360
 ×
22
7
 ××

= .962