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1. A skating champion moves along the circumference of a circle of radius 28 m in 44 sec. How many seconds will it take her to move along the perimeter of a hexagon of side 48 m ?

Solution:
Distance mode by the skater in 44 sec
= Circumference of the circle
= (2×227×28)     m
= 176 m
Speed of skater :
= (17644)   m/sec
= 4 m/sec
Perimeter of hexagon :
= (6 × 48) m
= 288 m
∴ Required difference :
= (2884)   sec
= 72 sec

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