(c) Following rule should be used in this case: The perimeter of any polygon circumscribed about a circle is always greater than the circumference of the circle and the perimeter of any polygon inscribed in a circle is always less than the circumference of the circle. Since, the circles is of radius 1, its circumference will be 2 π. Hence, L1(13)>2π and L2(17)<2π {L1(13)+2π} > 4π and hence