Question
The figure is made up of 5 semicircles. YZ : ZA : AB : BC is 5 : 1 : 4 : 2. Line YC is 84 m. Find the perimeter of the shaded part. (Take π = 227)
2 m

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The figure is made up of 5 semicircles. YZ : ZA : AB : BC is 5 : 1 : 4 : 2. Line YC is 84 m. Find the perimeter of the shaded part. (Take π = 227)