Question
The figure is made up of 4 semicircles. QR : RS : ST is 5 : 3 : 2. Line QT is 70 cm. Find the perimeter of the shaded part. (Take π = 227)
2 m

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The figure is made up of 4 semicircles. QR : RS : ST is 5 : 3 : 2. Line QT is 70 cm. Find the perimeter of the shaded part. (Take π = 227)