belt

Okay, so r = 0.5

Now calculate the perimeter of the first semi-circle = (pi)r = 0.5pi

Perimeter of second circle = 0.5pi too

Now since we know the total length is 15

0.5pi + 0.5pi + 2x = 15

where x is distance between the centers of the two circles

solve that and we get x = (15-pi)/2

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ST: Master | Next Rank: 500 Posts; Posts: 191; Joined: Sat Feb 14, 2009 11:56 am; Thanked: 1 times

by ST » Mon Aug 10, 2009 4:08 am

Thank you

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