Question

Asked Dec 5, 2019

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Step 1

Let r_{1 }is the radius of outer circle then its perimeter p_{1} is given as.

Step 2

Let r_{2 }is the radius of inner circle then its perimeter p_{2} is given as.

Step 3

The perimeter p3 of the straight portion can be calculated as. There are same 4 straight portions therefore we ...

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