Question

The length of an hour hand of a clock is 6 cm . Find area of the sector swept by this hour hand in 1 hour .

Answer 1

Angle of sector = 360°

Area of sector = πr²Ф/360°

                         = 22/7 x 6 x 360/360

                         = 22/7 x 6 x 1

                         = 22 x 0.85

                         = 18.7 cm²

 

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